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Epalxis
''Epalxis'' is an extinct genus of sea snails, marine gastropod mollusks in the family (biology), family Turridae, the turrids.MolluscaBase eds. (2020). MolluscaBase. Epalxis Cossmann, 1889 †. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1321533 on 2020-11-03 Typespecies Cossmann stated the type species of ''Epalxis'' to be ''Pleurotoma crenulata'' Lamarck, 1804; however he used the latter name in the sense of Deshayes (1834). ''P. crenulata'' in the sense of Deshayes and Cossmann is in fact ''Pleurotoma ventricosa'' Lamarck, 1804. Brebion [1992, Cossmanniana, Hors-série 1] accepted ''P. ventricosa'' as the type species of ''Epalxis'', and Tracey et al. (2019) accepted Brebion's type species fixation under Art. 70.3 and 86.1.1 of the Code. However, Art. 70.3 cannot be applied retroactively to Brebion's type species fixation. Tracey et al. should have invoked Art. 70.3 in their own right if they chose to do so. For ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epalxis Bouryi
''Epalxis'' is an extinct genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids.MolluscaBase eds. (2020). MolluscaBase. Epalxis Cossmann, 1889 †. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1321533 on 2020-11-03 Typespecies Cossmann stated the type species of ''Epalxis'' to be ''Pleurotoma crenulata'' Lamarck, 1804; however he used the latter name in the sense of Deshayes (1834). ''P. crenulata'' in the sense of Deshayes and Cossmann is in fact ''Pleurotoma ventricosa'' Lamarck, 1804. Brebion 992, Cossmanniana, Hors-série 1accepted ''P. ventricosa'' as the type species of ''Epalxis'', and Tracey et al. (2019) accepted Brebion's type species fixation under Art. 70.3 and 86.1.1 of the Code. However, Art. 70.3 cannot be applied retroactively to Brebion's type species fixation. Tracey et al. should have invoked Art. 70.3 in their own right if they chose to do so. For the time being, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turridae
Turridae is a taxonomic family name for a number of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. MolluscaBase (2018). Turridae H. Adams & A. Adams, 1853 (1838). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=152 on 2018-07-22 The family name Turridae was originally given to a very large group of several thousand sea snail species that were thought to be closely related. The family was described with about 700 genus-group taxa and an estimated 10,000 recent and fossil species. However, that original grouping was discovered to be polyphyletic. In recent years, the family Turridae has been much reduced in size, because a number of other families were created to contain the monophyletic lineages that had previously been thought to belong in the same family. The common name ''turrids'' is still used informally to refer to the polyphyletic group. Distribution Species in the family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 absence of a visible shell. Definition Determining whether some gastropods should be called sea snails is not always easy. Some species that live in brackish water (such as certain neritids) can be listed as either freshwater snails or marine snails, and some species that live at or just above the high tide level (for example species in the genus '' Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known .... Anatomy Sea snails are a very large group o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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