The non-marine molluscs of

Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...

are a part of the molluscan fauna of Portugal. There are numerous species of non-marine molluscs living in the wild in Portugal.

Freshwater gastropods

Neritidae Neritidae, common name the nerites, is a taxonomic family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive operculum. MolluscaBase eds. (2021). MolluscaBase. Neritininae Poey, 1852. Accessed through: ...

* '' Theodoxus baeticus'' (Lamarck, 1822)

Bithyniidae Bithyniidae is a family of small freshwater snails with an operculum, aquatic gastropod molluscs in the clade Littorinimorpha.Bouchet, P.; Gofas, S. (2015). Bithyniidae Gray, 1857. In: MolluscaBase (2015). Accessed through: World Register of Ma ...

* ''

Bithynia tentaculata ''Bithynia tentaculata'', common names the mud bithynia or common bithynia, or faucet snailKipp R. M. & Benson A. (2008). ''Bithynia tentaculata''. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. https://nas.er.usgs.gov/queries/Fac ...

'' (Linnaeus, 1758) Hydrobiidae * ''

Alzoniella rolani ''Alzoniella'' is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. All the species within the snail genus ''Alzoniella'' are crenobiotic, i.e. they are dependent on springs as a ...

'' (Boeters, 1986) * '' Belgrandia alcoaensis'' C. Boettger, 1963 - endemic to PortugalG.A. Holyoak, D.T. Holyoak & R. Mendes (2017). "Descriptions of two new species of ''Belgrandia'' (Gastropoda:Hydrobiidae) from Central Portugal".

Iberus ''Iberus'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Helicinae of the family Helicidae. MolluscaBase eds. (2021). MolluscaBase. Iberus Montfort, 1810. Accessed through: World Register of Ma ...

35(1): 71-83. * '' Belgrandia alvaroi'' G. Holyoak, D. Holyoak & Mendes, 2017 - endemic to Portugal * '' Belgrandia heussi'' C. Boettger, 1963 - endemic to Portugal * '' Belgrandia jordaoi'' G. Holyoak, D. Holyoak & Mendes, 2017 - endemic to Portugal * '' Belgrandia lusitanica'' (Paladilhe, 1867) - endemic to Portugal * '' Belgrandia silviae'' Rolán & Oliveira, 2009 - endemic to Portugal * ''

Hydrobia glyca ''Hydrobia glyca'' is a species of very small aquatic snail, an operculate gastropod mollusk in the family Hydrobiidae Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater and brackish water sn ...

'' (Servain, 1880) * '' Iberhoratia conimbrigensii'' Talaván Serna & Talaván Gómez, 2020 - endemic to Portugal * '' Iberhoratia tagomei'' Talaván Serna, 2019 - endemic to Portugal * '' Mercuria tachoensis'' (Frauenfeld, 1865) - endemic to Portugal

Tateidae Tateidae is a family of very small and minute aquatic snails with an operculum, gastropod mollusks in the superfamily Truncatelloidea.Bouchet, P. (2014). Tateidae Thiele, 1925. Accessed through: World Register of Marine Species at http://www.ma ...

* ''

Potamopyrgus antipodarum The New Zealand mud snail (''Potamopyrgus antipodarum'') is a species of very small freshwater snail with a gill and an operculum. This aquatic gastropod mollusk is in the family Tateidae. It is native to New Zealand, where it is found through ...

'' (Gray, 1843) - introduced

Valvatidae ''Valvatidae'', the valve snails, is a taxonomic family of very small freshwater snails with an operculum, aquatic gastropod mollusks. Taxonomy The family Valvatidae has no subfamilies (according to the taxonomy of the Gastropoda by Bouche ...

* ''

Valvata piscinalis ''Valvata piscinalis'', common name the European stream valvata or European valve snail, is a species of minute freshwater snail with gills and an Operculum (gastropod), operculum, an Aquatic animal, aquatic gastropod mollusk in the family Valva ...

'' (O.F. Müller, 1774)

Lymnaeidae Lymnaeidae, common name the pond snails, is a taxonomic family of small to large air-breathing freshwater snails, aquatic pulmonate gastropod mollusks, that belong to the clade Hygrophila. Lymnaeidae is the only family within the superfamily ...

* ''

Galba truncatula ''Galba truncatula'' is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Lymnaeidae, the pond snails.Neubauer, Thomas A. (2014). Galba (Galba) truncatula (Müller, 1774). Accessed through: World R ...

'' (O.F. Müller, 1774) * ''

Pseudosuccinea columella ''Pseudosuccinea columella'' , the American ribbed fluke snail, is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Lymnaeidae, the pond snails. This snail is an intermediate host for ''Fasciola ...

'' (Say, 1817) - introduced * ''

Radix auricularia ''Radix auricularia'', the big-ear radix, is a species of medium-sized freshwater snail, an aquatic pulmonate gastropod mollusk in the family Lymnaeidae.Neubauer, Thomas A.; Rosenberg, G.; Gofas, S. (2014). Radix auricularia (Linnaeus, 1758) ...

'' (Linnaeus, 1758) * ''

Radix balthica ''Radix balthica'', common name the wandering snail, is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Lymnaeidae, the pond snails.Neubauer, Thomas A.; Rosenberg, G.; Gofas, S. (2014). Radix ...

'' (Linnaeus, 1758) * ''

Stagnicola palustris ''Stagnicola palustris'' is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Lymnaeidae, the pond snails. Taxonomy ''Stagnicola turricula'' is a synonym of ''Stagnicola palustris'', because t ...

'' (O. F. Müller, 1774)

Physidae Physidae, common name the bladder snails, is a monophyletic taxonomic family of small air-breathing freshwater snails, aquatic pulmonate gastropod molluscs in the superfamily Lymnaeoidea .MolluscaBase eds. (2021). MolluscaBase. Physidae Fitzin ...

* '' Physa acuta'' (Draparnaud, 1805) - introduced Planorbidae * ''

Ancylus fluviatilis The river limpet (''Ancylus fluviatilis'') is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies. Des ...

'' O.F. Müller, 1774 * '' Anisus spirorbis'' (Linnaeus, 1758) * ''

Bathyomphalus contortus ''Bathyomphalus contortus'' is a species of small air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails and their allies. Distribution The distribution of this species is Pa ...

'' (Linnaeus, 1758) * ''

Bulinus truncatus ''Bulinus truncatus'' is a species of air-breathing freshwater snail with a sinistral shell, an aquatic pulmonate gastropod mollusk in the subfamily Bulininae of the family Bulinidae, the ram's horn snails and the like. MolluscaBase eds. (2 ...

'' (Audouin, 1827) * '' Ferrissia californica'' (Rowell, 1863) - introduced * '' Gyraulus albus'' (O.F. Müller, 1774) * '' Gyraulus chinensis'' (Dunker, 1848) - introduced * '' Gyraulus crista'' (Linnaeus, 1758) * ''

Gyraulus laevis ''Gyraulus laevis'' is a small species of freshwater snail, an aquatic pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails. Distribution Found mainly in the northern parts of Europe East to Siberia and north-east Asia. ...

'' (Alder, 1838) * ''

Helisoma duryi ''Planorbella duryi'', common name the Seminole rams-horn, is a species of air-breathing freshwater snail, a pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. The species is endemic to Florida and is found frequently ...

'' (Wetherby, 1879) - introduced * ''

Hippeutis complanatus ''Hippeutis complanatus'', or the flat ram's-horn snail, is a species of minute air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk or micromollusk in the family Planorbidae, the ram's horn snails. ''Hippeutis complanatus'' i ...

'' (Linnaeus, 1758) * ''

Menetus dilatatus ''Menetus dilatatus'' is a species of small air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. Shell description The shell is small, of a yellowish green-color, minutel ...

'' (Gould, 1841) - introduced * ''

Planorbarius metidjensis ''Planorbarius metidjensis'' is a freshwater lung snail. MolluscaBase eds. (2022). MolluscaBase. Planorbarius metidjensis (Forbes, 1838). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails ...

'' (Forbes, 1838) * ''

Planorbis carinatus ''Planorbis carinatus'' is species of air-breathing freshwater snail, a pulmonate gastropod mollusk in the family Planorbidae, the ramshorn snails. Description The width of shell of this species is 9–15 mm. The shell has a noticeable k ...

'' O.F. Müller, 1774 * ''

Planorbis planorbis ''Planorbis planorbis'' is a species of air-breathing freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ram's horn snails.Neubauer, Thomas A. (2014). ''Planorbis'' (''Planorbis'') ''planorbis'' (Linnaeus, 1758). Acc ...

'' (Linnaeus, 1758)

Land gastropods

Aciculidae The Aciculidae are a family of minute land snails which have opercula (an operculum is a little door that closes the shell when the animal retracts into it). In other words, Aciculidae are terrestrial operculate gastropods. Even though Aciculid ...

* ''

Platyla lusitanica ''Platyla lusitanica'' is a species of very small land snail with an operculum, a terrestrial gastropod mollusk or micromollusk in the family Aciculidae. This species is endemic to Portugal Portugal, officially the Portuguese Republic ( ...

'' (D. Holyoak & Seddon, 1985) - endemic to Portugal Pomatiidae * ''

Pomatias elegans ''Pomatias elegans'', common name the round-mouthed snail, is a species of small land snail with an operculum, a terrestrial gastropod mollusk in the family Pomatiidae within the superfamily Littorinoidea, the winkles and their allies. This spe ...

'' (O.F. Müller, 1774) * ''

Tudorella sulcata ''Tudorella sulcata'' is a species of land snail which has an operculum (gastropod), operculum, a terrestrial animal, terrestrial gastropod Mollusc, mollusk in the family Pomatiidae. Distribution This species stricto sensu (''T. s. sulcata'') ...

'' (Draparnaud, 1805) - introduced Ellobiidae * ''

Carychium ibazoricum ''Carychium'' is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Ellobiidae. Species species within the genus ''Carychium'' include: *'' Carychium achimszulci'' Stworzewicz, 1999, Mioce ...

'' Bank & E. Gittenberger, 1985 * ''

Leucophytia bidentata ''Leucophytia bidentata'' is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Ellobiidae.MolluscaBase eds. (2021). MolluscaBase. Leucophytia bidentata (Montagu, 1808). Accessed through: World R ...

'' (Montagu, 1808) * '' Myosotella denticulata'' (Montagu, 1803) * ''

Ovatella firminii ''Ovatella'' is a genus of gastropods belonging to the family Ellobiidae. The species of this genus are found in Europe, Northern Africa and Northern America. Species *'' Ovatella aequalis'' *'' Ovatella boettgeri'' *'' Ovatella firminii'' * ...

'' (Payraudeau, 1827) * '' Pedipes dohrni'' d’Ailly, 1896 * '' Pseudomelampus exiguus'' (R.T. Lowe, 1832)

Succineidae Succineidae are a family of small to medium-sized, air-breathing land snails (and slugs), terrestrial pulmonate gastropod molluscs in the superfamily Succineoidea.MolluscaBase eds. (2021). MolluscaBase. Succineidae Beck, 1837. Accessed thr ...

* ''

Oxyloma elegans ''Oxyloma elegans'' is a species of small European land snail, a terrestrial pulmonate gastropod mollusk belonging to the family Succineidae, the amber snails. Description The shell usually has fewer than 3 whorls. The body whorl is very la ...

'' (Risso, 1826) * ''

Succinea ''Succinea'', common name the amber snails, is a large genus of small, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Succineidae. MolluscaBase eds. (2021). MolluscaBase. Succinea Draparnaud, 1801. Access ...

'' spec. - introduced * ''

Succinella oblonga ''Succinella oblonga'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Succineidae. MolluscaBase eds. (2022). MolluscaBase. Succinella oblonga (Draparnaud, 1801). Accessed through: World Register ...

'' (Draparnaud, 1801)

Cochlicopidae Cochlicopidae is a taxonomic family of small, air-breathing, land snails, terrestrial pulmonate gastropod mollusks in the superfamily Cochlicopoidea. Anatomy In this family, the number of haploid chromosome A chromosome is a long DN ...

* ''

Cochlicopa lubrica ''Cochlicopa lubrica'' is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Cochlicopidae.MolluscaBase eds. (2020). MolluscaBase. Cochlicopa lubrica (O. F. Müller, 1774). Accessed through: ...

'' (O.F. Müller, 1774) * ''

Cochlicopa lubricella ''Cochlicopa lubricella'' is a European species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Cochlicopidae. MolluscaBase eds. (2020). MolluscaBase. Cochlicopa lubricella (Porro, 1838). Accessed thr ...

'' (Porro, 1838)

Chondrinidae Chondrinidae is a family of mostly minute air-breathing land snails, terrestrial pulmonate gastropod mollusks in the order Pulmonata. Anatomy In this family, the number of haploid chromosomes lies between 26 and 30 (according to the values i ...

* '' Chondrina lusitanica'' (L. Pfeiffer, 1848) - endemic to Portugal * '' Granopupa granum'' (Draparnaud, 1801)

Lauriidae Lauriidae is a family of land snails. It is classified within the informal group Orthurethra, itself belonging to the clade Stylommatophora within the clade Eupulmonata (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005) ...

* ''

Lauria cylindracea ''Lauria cylindracea'', common name "the common chrysalis snail", is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Lauriidae. Description For terms see gastropod shell The 3-4 x 1.8 mm ...

'' (Da Costa, 1778) * '' Leiostyla anglica'' (A. Férussac, 1821)

Pyramidulidae Pyramidulidae is a family (biology), family of small air-breathing land snails, terrestrial molluscs, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea. MolluscaBase eds. (2022). MolluscaBase. Pyramidulidae Kennard & B. B. W ...

* '' Pyramidula jaenensis'' (Clessin, 1882) * '' Pyramidula umbilicata'' (Montagu, 1803)

Valloniidae Valloniidae is a taxonomic family of small and minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea. MolluscaBase eds. (2020). MolluscaBase. Valloniidae Morse, 1864. Accessed through: World R ...

* ''

Acanthinula aculeata ''Acanthinula aculeata'' is a species of minute, air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Valloniidae. Description For terms see gastropod shell. The 1.9-2.1 mm. shell is sligh ...

'' (O.F. Müller, 1774) * ''

Plagyrona angusta ''Plagyrona'' is a genus of gastropods belonging to the family Valloniidae Valloniidae is a taxonomic family of small and minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea. MolluscaBase ...

'' D. Holyoak & G. Holyoak, 2012 - introduced * ''

Plagyrona placida ''Plagyrona'' is a genus of gastropods belonging to the family Valloniidae. The species of this genus are found in Southern Europe. Species: *''Plagyrona angusta'' *''Plagyrona debeauxiana ''Plagyrona'' is a genus of gastropods belonging t ...

'' (Shuttleworth, 1852) * ''

Spermodea lamellata ''Spermodea lamellata'' is a species of minute European land snail, a terrestrial gastropod mollusc, or micromollusc, in the family Valloniidae. Description For terms see gastropod shell''. The 2-2.2 mm x 2-2.2 mm shell has a char ...

'' (Jeffreys, 1830) * ''

Vallonia costata ''Vallonia costata'' is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Valloniidae.MolluscaBase eds. (2023). MolluscaBase. Vallonia costata (O. F. Müller, 1774). Accessed through: World Re ...

'' (O.F. Müller, 1774) * ''

Vallonia pulchella ''Vallonia pulchella'', common name the lovely vallonia, is a species of very small air-breathing land snail, a terrestrial molluscs, terrestrial pulmonate gastropod mollusk in the family Valloniidae. MolluscaBase eds. (2023). MolluscaBase. Vallo ...

'' (O.F. Müller, 1774)

Truncatellinidae Truncatellinidae is a family of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs or micromollusks in the superfamily Chondrinoidea. MolluscaBase eds. (2020). MolluscaBase. Truncatellinidae Steenberg, 1925. Accessed ...

* ''

Columella aspera ''Columella aspera'' is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Truncatellinidae, the vertigo snails and allies. Description The 2.0-2.5 x 1.3-1.4 mm. shell has 4-5 whorls ...

'' Waldén, 1966 * ''

Truncatellina beckmanni ''Truncatellina'' is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Truncatellinidae.MolluscaBase (2018). Truncatellina R. T. Lowe, 1852. Accessed through: World Register of Marine Species ...

'' Quintana Cardona, 2010 * '' Truncatellina callicratis'' (Scacchi, 1833) Vertiginidae * ''

Vertigo antivertigo ''Vertigo antivertigo'' is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusc or micromollusc in the family Vertiginidae, the whorl snails. MolluscaBase eds. (2023). MolluscaBase. Vertigo antivertigo (Draparna ...

'' (Draparnaud, 1801) * ''

Vertigo pygmaea ''Vertigo pygmaea'', common name the "crested vertigo", is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae, the whorl snails. MolluscaBase eds. (2023). MolluscaBase. Vertigo pygm ...

'' (Draparnaud, 1801)

Enidae Enidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks. MolluscaBase eds. (2020). MolluscaBase. Enidae B. B. Woodward, 1903 (1880). Accessed through: World Register of Marine Species at: http://www.marinespecies ...

* ''

Merdigera obscura ''Merdigera obscura'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Enidae. Distribution and habitat This species is present in north-western Africa and in most of Europe from Portugal to R ...

'' (O.F. Müller, 1774) Clausiliidae * ''

Balea perversa ''Balea perversa'', also known as the wall snail or tree snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails. The shell of this species is left-handed in coiling ...

'' (Linnaeus, 1758) * '' Balea heydeni'' Maltzan, 1881 * ''

Clausilia bidentata ''Clausilia bidentata'', the two-toothed door snail, is a species of door snails, terrestrial molluscs, terrestrial pulmonate gastropod mollusks in the genus ''Clausilia'' belonging to the family Clausiliidae, all of which have a clausilium. Su ...

'' (Strøm, 1765) * '' Macrogastra rolphii portensis'' (Luso da Silva, 1871) - endemic to Portugal

Ferussaciidae Ferussaciidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Achatinoidea. MolluscaBase eds. (2020). MolluscaBase. Ferussaciidae Bourguignat, 1883. Accessed through: World Register of Marine ...

* ''

Cecilioides acicula ''Cecilioides acicula'', common name the "blind snail" or "blind awlsnail", is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Ferussaciidae. This is a subterranean species. Desc ...

'' (O.F. Müller, 1774) * ''

Cecilioides barbozae ''Cecilioides'' is a genus of very small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Ferussaciidae. MolluscaBase eds. (2020). MolluscaBase. Cecilioides A. Férussac, 1814. Accessed through: World Register of ...

'' (Maltzan, 1886) - endemic to Portugal * ''

Cecilioides clessini ''Cecilioides'' is a genus of very small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Ferussaciidae. MolluscaBase eds. (2020). MolluscaBase. Cecilioides A. Férussac, 1814. Accessed through: World Register ...

'' (Maltzan, 1886) - endemic to Portugal * ''

Ferussacia folliculum ''Ferussacia'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Ferussaciidae.WoRMS (2020). Ferussacia Risso, 1826. Accessed at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=580513 on 2020 ...

'' (Schröter, 1784) Achatinidae * '' Rumina decollata'' (Linnaeus, 1758) Testacellidae * ''

Testacella maugei ''Testacella maugei'' is a species of air-breathing, carnivorous land slug, a terrestrial gastropod mollusc in the family Testacellidae, the shelled slugs.Marshall, B. (2014). Testacella maugei Férussac, 1819. Accessed through: World Register ...

'' A. Férussac, 1819

Discidae Discidae is a taxonomic family of small air-breathing land snails, terrestrial gastropod mollusks in the superfamily Punctoidea. Genera The family Discidae has no subfamilies. Genera within the family Discidae include: * ''Anguispira'' Morse, ...

* ''

Discus rotundatus ''Discus rotundatus'', common name rotund disc, is a species of small, air-breathing, land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails. Description The shells of ''Discus rotundatus'' in the adult st ...

'' (O.F. Müller, 1774)

Helicodiscidae Helicodiscidae is a family of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Punctoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Genera Genera within the family i ...

* '' Lucilla singleyana'' (Pilsbry, 1889) - introduced

Punctidae Punctidae, common name the "dot snails" or "pinhead snails", is a family of minute air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the informal group Sigmurethra (according to the taxonomy of the Gastropo ...

* '' Paralaoma servilis'' (Shuttleworth, 1852) * ''

Punctum pygmaeum ''Punctum pygmaeum'' is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Punctidae, the dot snails. Shell description For terms see gastropod shell. The shell is very small, 1.2-1. ...

'' (Draparnaud, 1801)

Euconulidae Euconulidae is a taxonomic family of minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the superfamily Trochomorphoidea. This land snail family is closely allied to the Zonitidae, the glass snails. ...

* ''

Euconulus alderi ''Euconulus alderi'' is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Euconulidae, the hive snails. MolluscaBase eds. (2020). MolluscaBase. Euconulus alderi (Gray, 1840). Accessed through: ...

'' (Gray, 1840) * ''

Euconulus fulvus ''Euconulus fulvus'' is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Euconulidae, the hive snails. Description For terms see gastropod shell The 2.0-2.5 x 2.8-3.5 mm shell is br ...

'' (O.F. Müller, 1774)

Gastrodontidae Gastrodontidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Gastrodontoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). MolluscaBase eds. (2020). MolluscaBase ...

* '' Aegopinella epipedostoma'' (Fagot, 1879) * ''

Aegopinella nitidula ''Aegopinella nitidula'' (previously known as ''Retinella nitidula'') is a species of small land snail, a terrestrial molluscs, terrestrial pulmonate gastropod mollusk in the family Gastrodontidae, the glass snails. Forsyth et al. (2001) review ...

'' (Draparnaud, 1805) * ''

Aegopinella pura ''Aegopinella pura'' is a species of small land snail, a terrestrial pulmonate gastropod mollusk in the family Gastrodontidae, the glass snails. MolluscaBase eds. (2020). MolluscaBase. Aegopinella pura (Alder, 1830). Accessed through: World Regis ...

'' (Alder, 1830) * ''

Zonitoides arboreus ''Zonitoides arboreus'', commonly known as the quick gloss snail, is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Gastrodontidae. Distribution The native distribution of ''Z. arboreus'' ...

'' (Say, 1816) - introduced * '' Zonitoides nitidus'' (O.F. Müller, 1774)

Oxychilidae Oxychilidae is a taxonomic family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Gastrodontoidea. Distribution The distribution of Oxychilidae includes the Nearctic, western-Palearctic, eastern-Palear ...

* '' Mediterranea hydatina'' (Rossmässler, 1838) * ''

Morlina glabra ''Morlina glabra'' is a species of gastropods belonging to the family Oxychilidae. Subspecies: * ''Morlina glabra ercica'' (Benoit, 1859) * ''Morlina glabra glabra'' (Rossmässler, 1835) * ''Morlina glabra harlei'' (Fagot, 1884) * ''Morlina glab ...

'' (Rossmässler, 1835) * ''

Oxychilus alliarius ''Oxychilus alliarius'', commonly known as the garlic snail or garlic glass-snail, is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the glass snail family, Oxychilidae. Etymology The specific na ...

'' (J.S. Miller, 1822) * '' Oxychilus alpedrizensis'' Holyoak & Mendes, 2022 - endemic to Portugal * ''

Oxychilus cellarius ''Oxychilus cellarius'', common name cellar glass-snail, is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Oxychilidae, the glass snails. Description The shell has 5.5-6 regularly increasing ...

'' (O.F. Müller, 1774) * ''

Oxychilus draparnaudi ''Oxychilus draparnaudi'', or Draparnaud's glass snail, is a species of small land snail, a terrestrial pulmonate gastropod mollusc in the family Oxychilidae, the glass snails. Description ''Oxychilus draparnaudi'' is large for a zonitid glass ...

'' (Beck, 1837)

Pristilomatidae Pristilomatidae is a taxonomic family of air-breathing land snails, terrestrial gastropod mollusks in the superfamily Gastrodontoidea. According to the 2005 taxonomy of the Gastropoda by Bouchet & Rocroi these snails belong to the "limacoid ...

* ''

Hawaiia minuscula ''Hawaiia minuscula'', common name the minute gem or minute gem snail, is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Pristilomatidae. Distribution The indigenous di ...

'' (Binney, 1841) - introduced * ''

Vitrea contracta ''Vitrea contracta'' is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Pristilomatidae. Description For terms see gastropod shell. The 2.2-2.6 mm. shell is colourless translucent and ...

'' (Westerlund, 1871)

Parmacellidae Parmacellidae is a family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks within the superfamily Parmacelloidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies (ac ...

* '' Drusia valenciennii'' (Webb & Van Beneden, 1836)

Agriolimacidae ''Agriolimacidae'' is a family of small and medium-sized land slugs, or shell-less snails, terrestrial molluscs, terrestrial pulmonate gastropod mollusc, mollusks. Distribution Distribution of Limacidae is Holarctic, this include: Nearctic, wes ...

* ''

Deroceras agreste ''Deroceras agreste'' is a species of air-breathing land slug in the family Agriolimacidae. Its common names include field slug, grey field slug, milky slug,Deroceras invadens ''Deroceras invadens'' is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae. Until 2011, this widely distributed species was known as ''Deroceras panormitanum'', and earlier as ''Derocera ...

'' Reise, Hutchinson, Schunack & Schlitt, 2011 - introduced * ''

Deroceras laeve ''Deroceras laeve'', the marsh slug, is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae. Distribution The distribution of ''Deroceras laeve'' was originally Palearctic, from ...

'' (O.F. Müller, 1774) * '' Deroceras lombricoides'' (Morelet, 1845) * '' Deroceras nitidum'' (Morelet, 1845) * ''

Deroceras panormitanum ''Deroceras panormitanum'' is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae. This article is about ''Deroceras panormitanum'' ''sensu stricto'', which occurs predominantly only on Si ...

'' (Lessona & Pollonera, 1882) - introduced * ''

Deroceras reticulatum ''Deroceras reticulatum'', common names the "grey field slug" and "grey garden slug", is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae. This species is an important agricul ...

'' (O.F. Müller, 1774) * ''

Furcopenis circularis ''Furcopenis'' is a genus of gastropods belonging to the family Agriolimacidae. The species of this genus are found in Pyrenees The Pyrenees (; es, Pirineos ; french: Pyrénées ; ca, Pirineu ; eu, Pirinioak ; oc, Pirenèus ; an, Pirineus) ...

'' Castillejo & Mascato, 1987 * ''

Furcopenis geresiensis ''Furcopenis'' is a genus of gastropods belonging to the family Agriolimacidae. The species of this genus are found in Pyrenees. Species: *''Furcopenis circularis'' *''Furcopenis darioi'' *''Furcopenis gallaeciensis ''Furcopenis'' is a gen ...

'' (Rodríguez, Castillejo & Outeiro, 1989)

Limacidae Limacidae, also known by their common name the keelback slugs, are a taxonomic family of medium-sized to very large, air-breathing land slugs, terrestrial pulmonate gastropod molluscs in the superfamily Limacoidea. Distribution The distr ...

* ''

Lehmannia marginata ''Lehmannia marginata'' is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Limacidae. Sometimes classified in the genus ''Limax'', the species is distinct in its ecology, and its nearly transpare ...

'' (O.F. Müller, 1774) * '' Lehmannia valentiana'' (A. Férussac, 1821) * ''

Limacus flavus ''Limacus flavus'', known commonly as the cellar slug, the yellow slug, or the tawny garden slug, is a medium to large species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Limacidae.MolluscaBase (2019). ...

'' (Linnaeus, 1758) * ''

Limax maximus ''Limax maximus'' (literally, "biggest slug"), known by the common names great grey slug and leopard slug, is a species of slug in the family Limacidae, the keeled slugs.Marshall, B. (2014). Limax maximus Linnaeus, 1758. Accessed through: Worl ...

'' Linnaeus, 1758

Vitrinidae Vitrinidae is a family of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Limacoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). MolluscaBase eds. (2021). MolluscaBa ...

* ''

Oligolimax annularis ''Oligolimax annularis'' is a species of gastropods belonging to the family Vitrinidae Vitrinidae is a family of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Limacoidea (according to the t ...

'' (S. Studer, 1820) * ''

Vitrina pellucida ''Vitrina pellucida'' is species of small land snail, a terrestrial pulmonate gastropod mollusk in the family Vitrinidae, the glass snails. Description This species is a 'semi-slug' with a flattened, globular shell. The animal is pale grey wi ...

'' (O.F. Müller, 1774)

Arionidae Arionidae, common name the "roundback slugs" or "round back slugs" are a taxonomic family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the superfamily Arionoidea. Distribution The distribution of this family of slug ...

* ''

Arion ater Arion (; grc-gre, Ἀρίων; fl. c. 700 BC) was a kitharode in ancient Greece, a Dionysiac poet credited with inventing the dithyramb. The islanders of Lesbos claimed him as their native son, but Arion found a patron in Periander, tyrant ...

'' (Linnaeus, 1758) * '' Arion fuligineus'' Morelet, 1845 * '' Arion hispanicus'' Simroth, 1886 * ''

Arion intermedius ''Arion intermedius'' is a species of land slug in the family Arionidae, the roundback slugs. It is known commonly as the hedgehog slug,Arion lusitanicus ''Arion lusitanicus'', also known by its common name Portuguese slug, is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae. Distribution ''Arion lusitanicus'' is endemic to forests of the ...

'' Mabille, 1868 * '' Arion nobrei'' Pollonera, 1889 * ''

Geomalacus maculosus The Kerry slug or Kerry spotted slug (''Geomalacus maculosus'') is a species of terrestrial, pulmonate, gastropod mollusc. It is a medium-to-large sized, air-breathing land slug in the family of roundback slugs, Arionidae. Adult Kerry slugs g ...

'' Allman, 1843 * '' Geomalacus anguiformis'' (Morelet, 1845) * '' Geomalacus oliveirae'' Simroth, 1891

Geomitridae Geomitridae is a Taxonomy (biology), taxonomic Family (biology), family of small to medium-sized air-breathing land snails, Terrestrial molluscs, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.MolluscaBase eds. (2021). M ...

* ''

Backeljaia gigaxii ''Backeljaia gigaxii'' is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusc in the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Backeljaia gigaxii (L. Pfeiffer, 1847). Accessed through: World Register ...

'' (L. Pfeiffer, 1847) *''

Candidula codia ''Candidula codia'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae, the hairy snails and their allies. MolluscaBase eds. (2022). MolluscaBase. Candidula codia (Bourguignat, 1860). Ac ...

'' ( Bourguignat, 1859) - endemic to Portugal * ''

Cochlicella acuta ''Cochlicella acuta'', common name the pointed snail, is a species of small but very high- spired, air-breathing land snail, a pulmonate gastropod mollusk in the family Geomitridae. MolluscaBase eds. (2020). MolluscaBase. Cochlicella acuta (O. F. ...

'' (O.F. Müller, 1774) * ''

Cochlicella barbara ''Cochlicella barbara'', now known as ''Prietocella barbara'', is a species of small but high- spired, air-breathing land snail, a pulmonate gastropod mollusk in the family Geomitridae. Distribution This species is native to Europe. It occurs ...

'' (Linnaeus, 1758) * ''

Cochlicella conoidea ''Cochlicella conoidea'' is a species of gastropod belonging to the family Geomitridae. The species is found in Western Europe and Mediterranean The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterrane ...

'' (dDraparnaud, 1801) * ''

Cernuella virgata ''Cernuella virgata'', also known as ''Helicella virgata'', common name, the "vineyard snail", is a species of small, air-breathing land snail, a pulmonate gastropod mollusc in the family Geomitridae.MolluscaBase eds. (2020). MolluscaBase ...

'' (Da Costa, 1778) * ''

Helicella cistorum ''Helicella'' is a genus of small to medium-sized, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Helicellinae of the family Geomitridae, the hairy snails and their allies. MolluscaBase eds. (2021). Mollusca ...

'' (Morelet, 1845) * ''

Microxeromagna lowei ''Microxeromagna'' is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Helicellinae of the family Geomitridae. The genus is distributed along the Mediterranean basin, from the Italian Pe ...

'' (Potiez & Michaud, 1838) * '' Ponentina curtivaginata'' D. Holyoak & G. Holyoak, 2012 - endemic to Portugal * '' Ponentina excentrica'' G. Holyoak & D. Holyoak, 2012 * '' Ponentina foiaensis'' G. Holyoak & D. Holyoak, 2012 - endemic to Portugal * '' Ponentina grandiducta'' G. Holyoak & D. Holyoak, 2012 - endemic to Portugal * '' Ponentina monoglandulosa'' D. Holyoak & G. Holyoak, 2012 - endemic to Portugal * '' Ponentina octoglandulosa'' D. Holyoak & G. Holyoak, 2012 * '' Ponentina papillosa'' G. Holyoak & D. Holyoak, 2012 * '' Ponentina platylasia'' (Castro, 1887) - endemic to Portugal * '' Ponentina ponentina'' (Morelet, 1845) * '' Ponentina revelata'' (Michaud, 1831) * '' Ponentina rosai'' (Castro, 1887) * ''

Xeroplexa arrabidensis ''Xeroplexa arrabidensis'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Xeroplexa arrabidensis (G. A. Holyoak & D. T. Holyoak, 2014). Acces ...

'' (G. Holyoak & D. Holyoak, 2014) - endemic to Portugal * ''

Xeroplexa belemensis ''Xeroplexa belemensis'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Xeroplexa belemensis (Servain, 1880). Accessed through: World Regist ...

'' (Servain, 1880) - endemic to Portugal * '' Xeroplexa carrapateirensis'' (G. Holyoak & D. Holyoak, 2014) - endemic to Portugal * ''

Xeroplexa coudensis ''Xeroplexa'' is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Helicellinae of the family Geomitridae, the hairy snails and their allies. MolluscaBase eds. (2022). MolluscaBase. Xerople ...

'' (G. Holyoak & D. Holyoak, 2010) - endemic to Portugal * ''

Xeroplexa intersecta ''Xeroplexa intersecta'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Xeroplexa intersecta (Poiret, 1801). Accessed through: World Registe ...

'' (Poiret, 1801) * '' Xeroplexa olisippensis'' (Servain, 1880) - endemic to Portugal * ''

Xeroplexa ponsulensis ''Xeroplexa ponsulensis'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Xeroplexa ponsulensis (D. T. Holyoak & G. A. Holyoak, 2014). Accesse ...

'' (D. Holyoak & G. Holyoak, 2014) - endemic to Portugal * ''

Xeroplexa scabiosula ''Xeroplexa scabiosula'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Xeroplexa scabiosula (Locard, 1899). Accessed through: World Register ...

'' (Locard, 1899) * ''

Xeroplexa setubalensis ''Xeroplexa setubalensis'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Xeroplexa setubalensis (L. Pfeiffer, 1850). Accessed through: World ...

'' (Pfeiffer, 1850) - endemic to Portugal * ''

Xeroplexa strucki ''Xeroplexa strucki'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. Although named by Maltzan (1886), no differences from '' X. olisippensis'' were indicated and Gittenberger (1993 ...

'' (Maltzan, 1886) - endemic to Portugal * '' Xerosecta promissa'' (Westerlund, 1893) * '' Xerosecta reboudiana'' (Bourguignat, 1863) * ''

Xerotricha apicina ''Xerotricha apicina'' is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae Geomitridae is a Taxonomy (biology), taxonomic Family (biology), family of small to medium-sized air-b ...

'' (Lamarck, 1822) * ''

Xerotricha conspurcata ''Xerotricha conspurcata'' is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Geomitridae. Description ''Xerotricha conspurcata'' grows up to 4.5 x 6.8 mm in size. It has a striated mottled b ...

'' (Draparnaud, 1801) * ''

Xerotricha jamuzensis ''Xerotricha'' is a genus of small air-breathing land snails, a terrestrial pulmonate gastropod mollusks in the subfamily Helicellinae of the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Xerotricha Monterosato, 1892. Accessed thro ...

'' (E. Gittenberger & Manga, 1977) * ''

Xerotricha madritensis ''Xerotricha madritensis'' is a species of air-breathing land snail, a pulmonate gastropod mollusk in the family Geometridae, the hairy snails and their allies. MolluscaBase eds. (2023). MolluscaBase. Xerotricha madritensis (Rambur, 1868). Acces ...

'' (Rambur, 1868) * ''

Xerotricha vatonniana ''Xerotricha'' is a genus of small air-breathing land snails, a terrestrial pulmonate gastropod mollusks in the subfamily Helicellinae of the family Geomitridae. MolluscaBase eds. (2022). MolluscaBase. Xerotricha Monterosato, 1892. Accessed thro ...

'' (Bourguignat, 1867) Helicidae * '' Cepaea nemoralis'' (Linnaeus, 1758) * '' Cornu aspersum'' (O.F. Müller, 1774) * ''

Eobania vermiculata ''Eobania vermiculata'' also known as ''Helix vermiculata'', common name the "chocolate-band snail" is a species of large, air-breathing, land snail, a Terrestrial animal, terrestrial pulmonate gastropod mollusk in the family Helicidae, the true ...

'' (O.F. Müller, 1774) - introduced * ''

Helicigona lapicida ''Helicigona lapicida'' is a species of medium-sized, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae, the typical snails. MolluscaBase eds. (2021). MolluscaBase. Helicigona lapicida (Linnaeus, 1758). A ...

'' (Linnaeus, 1758) * '' Marmorana muralis'' (O. F. Müller, 1774) - introduced * ''

Otala lactea ''Otala lactea'', known as the milk snail or Spanish snail, is a large, edible species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk, in the family Helicidae, the typical snails.MolluscaBase eds. (2021). MolluscaBase. Ota ...

'' (O.F. Müller, 1774) * '' Otala punctata'' (

O. F. Müller O is the fifteenth letter of the modern Latin alphabet. O may also refer to: Letters * Օ օ, (Unicode: U+0555, U+0585) a letter in the Armenian alphabet * Ο ο, Omicron, (Greek), a letter in the Greek alphabet * O (Cyrillic), a letter of the ...

, 1774) - introduced * ''

Theba pisana ''Theba pisana'', common names the white garden snail, sand hill snail, white Italian snail, Mediterranean coastal snail, and simply just the Mediterranean snail, is an edible species of medium-sized, air-breathing land snail, a terrestrial pulmon ...

'' (O.F. Müller, 1774) **''Theba pisana almogravensis'' D. Holyoak & G. Holyoak, 2016 - endemic to Portugal **''Theba pisana pisana'' (O.F. Müller, 1774)

Hygromiidae Hygromiidae is a taxonomic family of small to medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea. Helicellidae Ihering, 1909 Anatomy Some snails in genera within this family create ...

* '' Portugala inchoata'' (Morelet, 1845) * '' Monacha cartusiana'' (O.F. Müller, 1774)

Trissexodontidae Trissexodontidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies. The famil ...

* '' Caracollina lenticula'' (A. Férussac, 1821) * ''

Gasullia gasulli ''Gasullia'' is a genus of gastropods belonging to the family Trissexodontidae Trissexodontidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea (according to the taxonomy of the ...

'' (Ortiz de Zárate Rocandio & Ortiz de Zárate López, 1961) * ''

Gasulliella simplicula ''Gasulliella'' is a monotypic genus of gastropods belonging to the family Trissexodontidae. The only species is '' Gasulliella simplicula''. The species is found in Iberian Peninsula The Iberian Peninsula (), ** * Aragonese and Occita ...

'' (Morelet, 1845) * '' Gittenbergeria turriplana'' (

Morelet Pierre Marie Arthur Morelet (26 August 1809 – 9 October 1892) was a French naturalist, born in Lays, Doubs. He was a member of the Commission to Algeria, primarily as a natural artist, drawing any natural findings. He collected specimens in ...

, 1845) - endemic to Portugal * '' Oestophora barbella'' (Servain, 1880) * ''

Oestophora barbula ''Oestophora'' is a genus of air-breathing land snail, a terrestrial gastropod mollusk in the family Trissexodontidae. Distribution The distribution of the genus ''Oestophora'' includes western Iberian peninsula, north Africa and the Azores. ...

'' (Rossmässler, 1838) - endemic to Portugal * ''

Oestophora barrelsi ''Oestophora'' is a genus of air-breathing land snail, a terrestrial gastropod mollusk in the family Trissexodontidae. Distribution The distribution of the genus ''Oestophora'' includes western Iberian peninsula, north Africa and the Azores. ...

'' Hovestadt & Ripken, 2015 - endemic to Portugal * '' Oestophora lusitanica'' (L. Pfeiffer, 1841)

Bivalvia

Margaritieridae * '' Margaritifera margaritifera'' (Linnaeus, 1758) Unionidae * '' Anodonta anatina'' (Linnaeus, 1758) * ''

Anodonta cygnea The swan mussel, ''Anodonta cygnea'', is a large species of freshwater mussel, an aquatic bivalve mollusc in the family Unionidae, the river mussels. Because of its morphological variability and its wide range of distribution, there are over ...

'' (Linnaeus, 1758) * ''

Potomida littoralis ''Potomida littoralis'' is a species of bivalve belonging to the family Unionidae. MolluscaBase eds. (2022). MolluscaBase. Potomida littoralis (Cuvier, 1798). Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia. ...

'' (Cuvier, 1798) * ''

Unio delphinus ''Unio delphinus'' is a species of bivalve belonging to the family Unionidae. MolluscaBase eds. (2023). MolluscaBase. Unio delphinus Spengler, 1793. Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia.php?p=tax ...

'' Spengler, 1793 * ''

Unio tumidiformis ''Unio tumidiformis'' is a species of bivalve belonging to the family Unionidae. It is endemic to the southwestern Iberian Peninsula. Existing populations are known from the Guadiana, Mira River (Portugal), Mira, and Sado Rivers in Portugal and ...

'' Castro, 1885

Cyrenidae Cyrenidae is a family of clams in the order Venerida.Gofas, S. (2015). Cyrenidae Gray, 1847. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=238370 on 2015-08-2 ...

* ''

Corbicula fluminea ''Corbicula fluminea'' is a species of freshwater clam native to eastern Asia which has become a successful invasive species throughout North America, South America, and Europe. ''Corbicula fluminea'' is commonly known in the west as the Asian cl ...

'' (O.F. Müller, 1774) - introduced

Sphaeriidae Sphaeriidae is a family of small to minute freshwater bivalve molluscs in the order Sphaeriida. In the US, they are commonly known as pea clams or fingernail clams. Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: ''Sphaeri ...

* ''

Euglesa casertana ''Euglesa'' is a genus of bivalves belonging to the family Sphaeriidae. Species: *'' Euglesa adamsi'' *'' Euglesa atkinsoniana'' *'' Euglesa cara'' *'' Euglesa casertana'' *'' Euglesa cavatica'' *'' Euglesa centrale'' *'' Euglesa chankens ...

'' (Poli, 1791) * ''

Euglesa henslowana ''Euglesa'' is a genus of bivalves belonging to the family Sphaeriidae. Species: *'' Euglesa adamsi'' *'' Euglesa atkinsoniana'' *'' Euglesa cara'' *'' Euglesa casertana'' *'' Euglesa cavatica'' *'' Euglesa centrale'' *'' Euglesa chankens ...

'' (Sheppard, 1823) * ''

Euglesa subtruncata ''Euglesa'' is a genus of bivalves belonging to the family Sphaeriidae. Species: *''Euglesa adamsi'' *'' Euglesa atkinsoniana'' *''Euglesa cara'' *''Euglesa casertana'' *''Euglesa cavatica'' *'' Euglesa centrale'' *'' Euglesa chankensis'' ...

'' (Malm, 1855) * '' Musculium lacustre'' (O. F. Müller, 1774) * ''

Pisidium amnicum ''Pisidium amnicum'' is a species of very small freshwater clam, sometimes known as the greater European peaclam or the River pea shell. It is an aquatic bivalve in the family Sphaeriidae. Description Although only 9 mm (range 7–11& ...

'' (O.F. Müller, 1774) * '' Pisidium milium'' Held, 1836 * ''

Pisidium nitidum ''Pisidium nitidum'', the shining pea clam, is a species of minute freshwater clam, an aquatic bivalve mollusc in the family Sphaeriidae, the pea clams and fingernail clams. Description The 3 – 4 mm. shell is slightly tumid (swollen). ...

'' Jenyns, 1832 * ''

Pisidium obtusale ''Pisidium obtusale'' is a species of freshwater bivalve from family Sphaeriidae. Description The 2.5–3.5mm. shell is very tumid (swollen). It is an angular-oval shape with broad, rounded umbos which are behind the midpoint. The surface (perio ...

'' (Lamarck, 1818) * ''

Pisidium personatum ''Pisidium personatum'' is a species of freshwater bivalve from the family Sphaeriidae. Description The 2.5-3.5 mm shell is a characteristic round-regular oval shape. It has centrally placed low, rounded umbos. The surface (periostracum) is ...

'' Malm, 1855 * ''

Sphaerium corneum ''Sphaerium corneum'', also known as the European fingernailclam, is a very small freshwater clam, an aquatic bivalve mollusk in the family Sphaeriidae, the fingernail clams. Description The shell is fairly globular and can grow up to 9–13.5& ...

'' (Linnaeus, 1758)

References

{{DEFAULTSORT:Molluscs Portugal Molluscs

Port A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Ham ...

*Molluscs

Freshwater gastropods

Land gastropods

Bivalvia

See also

References