''Megastomia'' is a genus of

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda.

Taxonomy

Over fifty species worldwide have been placed in (sub)genus ''Megastomia'' Monterosato, 1884 by a number of authors (e.g. Saurin, 1959, 1962; Peñas & Rolán, 1999; Giannuzzi-Savelli et al. (2014). On the basis of 16s mtDNA sequence data, Schander et al. (2003) distinguished, and placed in ''Megastomia'', two species (''M. conoidea'' (Brocchi, 1814) and ''M. corimbensis'' (Schander, 1994)), which clustered separately from other species placed in ''

Odostomia ''Odostomia'' is the most speciose genus of minute sea snails, pyramidellid gastropod mollusks. This genus is placed in the family Pyramidellidae in the subfamily Odostomiinae. There are several hundred species in this diverse genus (Schander et ...

'' Fleming, 1813. However Høisæter (2014: 34) correctly pointed out that the type species ''Odostomia conspicua'' Alder, 1850 "is a typical ''Odostomia s.s.'' and has few traits in common with ''O. conoidea''". Considering the large number of species involved, and considering that for most of these species ''Odostomia'' is probably not more appropriate, the published combinations with ''Megastomia'' are nevertheless retained by the database WoRMS as "accepted" until more data become available.

Species

Species within the genus ''Megastomia'' include: * ''

Megastomia adiposa ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Laseron, 1959) * '' Megastomia adolphi'' (Saurin, 1959) * ''

Megastomia algoensis ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Thiele, 1925) * '' Megastomia aliter'' Penas & Rolan, 1999 * '' Megastomia alungata'' (Nordsieck, 1972) * '' Megastomia ampliata'' (Saurin, 1962) * '' Megastomia atrisaxi'' (Saurin, 1959) * ''

Megastomia bedoti ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Hornung & Mermod, 1924) * '' Megastomia binhdinhensis'' (Saurin, 1958) * '' Megastomia boteroi'' (Schander, 1994) * ''

Megastomia broti ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Hornung & Mermod, 1924) * ''

Megastomia canaria ''Megastomia canaria'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class com ...

'' (Hedley, 1907) * ''

Megastomia canina ''Megastomia canina'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class compr ...

'' Penas & Rolan, 1999 * ''

Megastomia caudana ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Saurin, 1959) * ''

Megastomia charneri ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Saurin, 1959) * ''

Megastomia clara ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Nomura, 1936) * ''

Megastomia conoidea ''Megastomia conoidea'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. Description The shell size varies between 2.5 mm and 7 mm. The white shell is solid, polished ...

'' (Brocchi, 1814) * ''

Megastomia conspicua ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Alder, 1850) * ''

Megastomia corimbensis ''Megastomia corimbensis'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class ...

'' Schander, 1994 * ''

Megastomia coseli ''Megastomia coseli'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class compr ...

'' Penas & Rolan, 1999 * ''

Megastomia desmiti ''Megastomia desmiti'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Gofas, S. (2015). Megastomia desmiti (van Aartsen, Gittenberger & Goud, 1998). In: MolluscaBase (2015). Ac ...

'' (van Aartsen, Gittenberger & Goud, 1998) * † ''

Megastomia doliella ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Laws, 1940) * '' Megastomia gea'' (Bartsch, 1915) * '' Megastomia gestroi'' (Hornung & Mermod, 1924) * '' Megastomia gestroides'' (Saurin, 1958) * '' Megastomia gilsoni'' (Dautzenberg, 1912) * '' Megastomia gordonis'' (Yokoyama, 1922) * '' Megastomia gutta'' Penas & Rolan, 1999 * '' Megastomia interolineata'' (Nomura, 1936) * ''

Megastomia jacundior ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Nomura, 1937) * † ''

Megastomia kaawa ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Laws, 1940) * '' Megastomia kamakurana'' (Nomura, 1938) * '' Megastomia kuroshiwo'' (Nomura, 1939) * '' Megastomia makiyamai'' (Nomura, 1937) * † '' Megastomia marginalis'' (Laws, 1940) * '' Megastomia martinae'' (Saurin, 1959) * '' Megastomia metayei'' (Saurin, 1959) * '' Megastomia miuraensis'' (Nomura, 1937) * ''

Megastomia neoexigua ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Nomura, 1937) * ''

Megastomia nhatrangensis ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Saurin, 1959) * '' Megastomia pagodiformis'' (Schander, 1994) * '' Megastomia palmaensis'' Penas & Rolan, 1999 * '' Megastomia pernettae'' (Saurin, 1959) * '' Megastomia pseudoperforata'' (Nomura, 1939) * ''

Megastomia pyramidata ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Laseron, 1951) * ''

Megastomia regina ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Thiele, 1925) * ''

Megastomia ruris ''Megastomia ruris'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class compri ...

'' Penas & Rolan, 1999 * ''

Megastomia sagamiana ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Nomura, 1937) * ''

Megastomia saurini ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Corgan & Van Aartsen, 1998) * '' Megastomia serenei'' (Saurin, 1959) * † '' Megastomia simemacula'' (Laws, 1940) * ''

Megastomia simplex ''Megastomia simplex'', common name the simple pyramid shell, is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.of Tasmania : ''SyrnoA guide to the seashell and other marine mollu ...

'' (Angas, 1871) * '' Megastomia sitirighamana'' (Nomura, 1938) * ''

Megastomia subcarina ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Laseron, 1951) * ''

Megastomia subcostata ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Saurin, 1959) * '' Megastomia subscripta'' (Schander, 1994) * ''

Megastomia sulcifera ''Megastomia sulcifera'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Bouchet, P. (2012). ''Megastomia sulcifera''. Accessed through: World Register of Marine Species The Worl ...

'' (E.A. Smith, 1871) * '' Megastomia supramarginata'' (Saurin, 1959) * ''

Megastomia tenera ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (A. Adams, 1860) * ''

Megastomia troncosoi ''Megastomia troncosoi'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class co ...

'' Peñas & Rolán, 2002 * '' Megastomia turbiniformis'' Penas & Rolan, 1999 * ''

Megastomia turukoae ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' Nomura, 1938 * '' Megastomia unifilosa'' (Saurin, 1962) * † ''

Megastomia venusta ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Laws, 1940) * ''

Megastomia vero ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Nomura, 1937) * '' Megastomia winfriedi'' Penas & Rolan, 1999 * ''

Megastomia yabehisakatsui ''Megastomia'' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Taxono ...

'' (Nomura, 1936) * '' Megastomia yukikoae'' (Nomura, 1938) * '' Megastomia zaleuca'' (Melvill, 1910) * ''

Megastomia zijpi ''Megastomia zijpi'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Gofas, S. (2015). Megastomia zijpi (van Aartsen, Gittenberger & Goud, 1998). In: MolluscaBase (2015). Access ...

'' (van Aartsen, Gittenberger & Goud, 1998) ;The following species were brought into synonymy: * ''Megastomia elata'' (Saurin, 1958): synonym of ''Megastomia saurini'' (Corgan & Van Aartsen, 1998) * ''Megastomia conoidea'' (Brocchi, 1884: synonym of '' Odostomia conoidea'' (Brocchi, 1814) * ''Megastomia conspicua'' (Alder, 1850): synonym of ''

Odostomia conspicua ''Odostomia conspicua'' is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G.; Gofas, S. (2011). ''Odostomia conspicua'' Alder, 1850. Accessed through: World Register of Ma ...

'' Alder, 1850

References

Monterosato T. A. (di) (1884). ''Nomenclatura generica e specifica di alcune conchiglie mediterranee.'' Palermo, Virzi, 152 pp.

External links

To GenBank

To World Register of Marine Species
Pyramidellidae Monotypic gastropod genera {{Pyramidellidae-stub