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Cephalaspidea
The order Cephalaspidea, also known as the headshield slugs and bubble snails, is a major taxon of sea slugs and bubble snails, marine gastropod mollusks within the larger clade Euopisthobranchia.Jörger K. M., Stöger I., Kano Y., Fukuda H., Knebelsberger T. & Schrödl M. (2010). "On the origin of Acochlidia and other enigmatic euthyneuran gastropods, with implications for the systematics of Heterobranchia". ''BMC Evolutionary Biology'' 10: 323. . Bubble shells is another common name for these families of marine gastropods, some of which have thin bubble-like shells. This clade contains more than 600 species. Members of this worldwide clade used to be considered the most primitive of the opisthobranchs, but now they are considered as derived and specialized members of the Euthyneura Spengel, 1881. Headshield slugs are the most morphologically diverse group of all the opisthobranchs. Anatomy The vast majority possess a shell, although it may be reduced or internal. They have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laonidae
Laonidae is a family of small marine snails belonging to the superfamily Philinoidea Philinoidea is a taxonomic superfamily of sea slugs, specifically headshield slugs, marine gastropod mollusks in the order Cephalaspidea. MolluscaBase eds. (2021). MolluscaBase. Philinoidea Gray, 1850 (1815). Accessed through: World Register of ...,MolluscaBase eds. (2021). MolluscaBase. Laonidae Pruvot-Fol, 1954. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=848158 on 2021-06-17 though Laonidae and Philinoidea are genetically distinct. They are monophyletic, meaning they are developed from a single ancestor. Laonidae also has the synonymised name Laoninae, which is largely unaccepted in the modern day scientific community. The name Laoninae is introduced by Alice Pruvot-Fol who proposes it as the subfamily to the genea Loana, A.Adams 1865. Genera: * '' Laona'' A.Adams, 1865 * '' Retusophiline'' Nordsieck, 1972 ; Genera brought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euopisthobranchia
Euopisthobranchia is a taxonomic clade of snails and slugs in the clade Heterobranchia within the clade Euthyneura. This clade was established as a new taxon by Jörger et al. in October 2010. Euopisthobranchia is a monophyletic portion of the Opisthobranchia as that taxon was traditionally defined but is not a replacement name for that group as several marine opisthobranch orders including Nudibranchia, Sacoglossa and Acochlidiacea are not included. Euopisthobranchia consist of the following taxa: * Umbraculoidea * Anaspidea * Runcinacea * Pteropoda * Cephalaspidea s.s. Gizzard Previous studies discussed the gizzard (i.e. a muscular oesophageal crop lined with cuticula) with gizzard plates as homologous apomorphic structures supporting a clade composed of Cephalaspidea s.s., Pteropoda and Anaspidea. A gizzard with gizzard plates probably originated in herbivorous taxa in which it worked like a grinding mill, thus might be secondarily reduced in carnivorous groups within ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opisthobranch
Opisthobranchs () is now an informal name for a large and diverse group of specialized complex gastropods which used to be united in the subclass Opisthobranchia. That taxon is no longer considered to represent a monophyletic grouping. Euopisthobranchia is a taxon containing a revised collection of opisthobranchs, and that taxon is considered monophyletic. Euopisthobranchia does not include some "traditional" opisthobranchs such as the Sacoglossa and the Acochlidiacea. The subclass Heterobranchia now contains all the species which used to be assigned to Opisthobranchia, plus all the species in the Pulmonata. The subclass Opisthobranchia included species in the order Cephalaspidea (bubble shells and headshield slugs), the sacoglossans, anaspidean sea hares, pelagic sea angels, sea butterflies, and many families of the Nudibranchia. ''Opisthobranch'' means "gills behind" (and to the right) of the heart. In contrast, ''Prosobranch'' means ''gills in front'' (of the heart). Opist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulloidea
Bulloidea is a superfamily of sea snails, or bubble snails, marine gastropod mollusks.Bouchet, P. (2010). Bulloidea Gray, 1827. In: MolluscaBase (2016). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=411887 on 2016-05-23 Families * Acteocinidae Dall, 1913 * Bullidae Gray, 1827 * Retusidae Retusidae is a family of very small sea snails, barrel-bubble snails, marine opisthobranch gastropod mollusks. These are headshield slugs, in the superfamily Bulloidea Bulloidea is a superfamily of sea snails, or bubble snails, marine gastro ... Thiele, 1925(s.s.) * Rhizoridae Dell, 1952 ; Families brought into synonymy: * Bullariidae Dall, 1908: synonym of Bullidae Gray, 1827 * Vesicidae J. Q. Burch, 1945: synonym of Bullidae Gray, 1827 * Volvulellidae Chaban, 2000: synonym of Rhizoridae Dell, 1952 * Volvulidae Locard, 1886: synonym of Rhizoridae Dell, 1952 References Oskars T.R., Bouchet P. & Malaquias M.A. (2015). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laona (gastropod)
''Laona'' is a genus of gastropods belonging to the family Laonidae Laonidae is a family of small marine snails belonging to the superfamily Philinoidea Philinoidea is a taxonomic superfamily of sea slugs, specifically headshield slugs, marine gastropod mollusks in the order Cephalaspidea. MolluscaBase eds. (2 .... The species of this genus are found in Europe and America. Species: *'' Laona alternans'' *'' Laona californica'' *'' Laona chilla'' *'' Laona condensa'' *'' Laona confusa'' *'' Laona grandioculi'' *'' Laona nanseni'' *'' Laona pruinosa'' *'' Laona quadrata'' *'' Laona thurmanni'' *'' Laona ventricosa'' ;Synonyms: * ''Laona finmarchica'' (M. Sars, 1859): synonym of '' Praephiline finmarchica'' (M. Sars, 1859) * ''Laona flexuosa'' (M. Sars, 1859): synonym of ''Laona pruinosa'' (W. Clark, 1827) References * Chaban E.M. & Soldatenko E.V. (2009) Description of a new genus Praephiline gen. nov. (Gastropoda: Opisthobranchia: Philinidae). Zoosystematica Ross ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acteocinidae
Tornatinidae is a family of very small sea snails, barrel-bubble snails, marine opisthobranch gastropod molluscs. These are headshield slugs, in the superfamily Bulloidea Bulloidea is a superfamily of sea snails, or bubble snails, marine gastropod mollusks.Bouchet, P. (2010). Bulloidea Gray, 1827. In: MolluscaBase (2016). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia. ....Bouchet, P.; Gofas, S. (2015). Rhizoridae Dell, 1952. In: MolluscaBase (2016). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=413349 on 2016-05-23 Genera Genera within the family Tornatinidae include: * '' Acteocina'' Gray, 1847 Genera brought into synonymy: * ''Actaeocina'' ic synonym of ''Acteocina'' Gray, 1847 * ''Didontoglossa'' Annandale, 1924: synonym of ''Acteocina'' Gray, 1847 * ''Tornatina'' A. Adams, 1850: synonym of ''Acteocina'' Gray, 1847 * ''Utriculastra'' Thiele, 1925: synonym of '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aglajidae
Aglajidae is a family of often colorful, medium-sized, sea slugs, marine opisthobranch gastropod mollusks. These are not nudibranchs; instead they are headshield slugs, in the clade Cephalaspidea.Bouchet, P. (2012). Aglajidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=22981 on 2012-06-16 Note on the authority and dates Family names such as this one, Aglajidae Pilsbry, 1895 (1847), that have two dates (the second one in parentheses) are those names which are ruled by Article 40(2) of the ICZN Code The International Code of Zoological Nomenclature (ICZN) is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals. It is also informally known as the ICZN Code, for its publisher, the .... "If ... a family-group name was replaced before 1961 because of the synonymy of the type genus, the replacement name is to be maintained if it is in prevailing usage. A n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hancock's Organ
Hancock's organ is a lateral concealed Sensory organs of gastropods, sensory organ of gastropods,Hancock, A., (1852). Observations on the Olfactory Apparatus in the Bullidae. The Annals and Magazine of Natural History Vol.IX – Series 2 188-190. a chemo-sensory sense organ found in some sea snails. This organ is found in most of the shelled opisthobranchs.Schrödl M. & Neusser T. P. (2010). "Towards a phylogeny and evolution of Acochlidia (Mollusca: Gastropoda: Opisthobranchia)". ''Zoological Journal of the Linnean Society'' 158: 124-154. . A great majority of the bubble shells and sea slugs of the orders Acteonoidea and Cephalaspidea have Hancock’s organs. References Gastropod anatomy {{gastropod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mnestiidae
Mnestiidae is a family of gastropods belonging to the order Cephalaspidea The order Cephalaspidea, also known as the headshield slugs and bubble snails, is a major taxon of sea slugs and bubble snails, marine gastropod mollusks within the larger clade Euopisthobranchia.Jörger K. M., Stöger I., Kano Y., Fukuda H., .... Genera: * '' Mnestia'' H. Adams & A. Adams, 1854 * '' Ventomnestia'' Iredale, 1936 References {{Taxonbar, from=Q26832565 Gastropods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelidonura Varians
''Chelidonura varians'' is a species of small sea slug, a marine opisthobranch gastropod mollusc in the order Cephalaspidea, the headshield slugs. Description & habitat This species has a maximum size of 70 mm. The background color is deep black. The margin of the parapod In invertebrates, the term parapodium ( Gr. ''para'', beyond or beside + ''podia'', feet; plural: parapodia) refers to lateral outgrowths or protrusions from the body. Parapodia are predominantly found in annelids, where they are paired, unjointed ...s and body are marked with a thin electric blue line. The two rather long "tails" at the end of the animal are characteristic of the genus ''Chelidonura'', the left one is always longer. They have also well-developed sensory cilia on the anterior edge of the head which are used to find their prey. This species lives on reef areas in shallow water lagoons with sandy or muddy bottom until 30 m depth. Distribution This cephalaspidean is widespread i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alacuppidae
Alacuppidae is a family of often colorful, medium-sized, sea slugs, marine opisthobranch gastropod mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...s.MolluscaBase eds. (2021). MolluscaBase. Alacuppidae Oskars, Bouchet & Malaquias, 2015. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=848162 on 2022-01-04 Genera * '' Alacuppa'' Oskars, Bouchet & Malaquias, 2015 * '' Mimatys'' Habe, 1952 * '' Roxania'' Leach, 1847 ;Synonyms: * † ''Abderospira'' Dall, 1896: synonym of ''Roxania'' Leach, 1847 * ''Leucophysema'' Dall, 1908: synonym of ''Roxania'' Leach, 1847 References External links Oskars T.R., Bouchet P. & Malaquias M.A. (2015). A new phylogeny of the Cephalaspidea (Gastropoda: Heterobranchia) based on expan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
