''Euchelus'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
sea snail
Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...
s,
marine gastropod
Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, freshwater, and fro ...
mollusk
Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...
s in the
family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Chilodontaidae
Chilodontaidae is a taxonomic family of mostly small deepwater sea snails, marine gastropod molluscs in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
Taxonomy
The family was previously in ...
(formerly in the family
Trochidae
The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Vetigastropoda. This family is commonly known as the top-snails because in many species the shell resembles ...
).
Description
The umbilicate or imperforate shell has a globose-turbinate shape. It is umbilicate or imperforate. The
whorl
A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs).
In nature
File:Photograph and axial plane floral diagra ...
s are rounded and with spirally granose revolving ribs. The
aperture
In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...
is subcircular. The outer
lip
The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Mammal lips are soft, movable and serve to facilitate the ingestion of food (e.g. sucklin ...
is thickened, and crenulate within. The
columella
Lucius Junius Moderatus Columella (, Arabic: ) was a prominent Roman writer on agriculture in the Roman Empire.
His in twelve volumes has been completely preserved and forms an important source on Roman agriculture and ancient Roman cuisin ...
shows a central tooth or a notch at the base. The
operculum has few whorls that are rapidly increasing.
Distribution
This marine species occur in the Indo-Pacific.
Species
Species within the genus ''Euchelus'' include:
* ''
Euchelus alarconi''
Rehder, 1980
* ''
Euchelus asper''
(Gmelin, 1791)
* ''
Euchelus atratus''
(Gmelin, 1791)
* ''
Euchelus barbadensis''
Dall, 1927
* ''
Euchelus bermudensis''
Moolenbeek & Faber, 1989
* ''
Euchelus bitoi''
Nomura & Hatai, 1940
* ''
Euchelus circulatus''
(Anton, 1849)
* ''
Euchelus dampierensis''
Jansen, 1994
* ''
Euchelus decora''
Poppe & Tagaro, 2016
* ''
Euchelus eucastus''
Dall, 1927
* ''
Euchelus guttarosea''
Dall, 1889
* ''
Euchelus horridus''
(Philippi, 1846)
* ''
Euchelus hummelincki''
Moolenbeek & Faber, 1989
* ''
Euchelus mysticus''
Pilsbry, 1889
* ''
Euchelus oxytropis''
(Philippi, 1848)
* ''
Euchelus persicus''
(E. von Martens, 1874)
* ''
Euchelus polysarkon
''Euchelus'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Chilodontaidae (formerly in the family Trochidae).
Description
The umbilicate or imperforate shell has a globose-turbinate shape. It ...
''
Vilvens, 2017
* ''
Euchelus pullatus''
Anton, 1848
* ''
Euchelus scaber''
(Linnaeus, 1758)
;Taxon inquirendum:
* ''Euchelus maculosus''
Pease, 1863
; Species brought into synonymy:
* ''Euchelus (Herpetopoma)'' Pilsbry, 1890; synonym of ''
Herpetopoma'' Pilsbry, 1890
* ''Euchelus (Nevillia)'' H. Adams, 1868; synonym of ''
Nevillia'' H. Adams, 1868
* ''Euchelus alabastrum'' (Reeve, 1858); synonym of ''
Euchelus asper'' (Gmelin, 1791)
* ''Euchelus alarconi'' Rehder, 1980: synonym of ''
Herpetopoma alarconi'' (Rehder, 1980)
* ''Euchelus ampullus'' Tate, 1893; synonym of ''
Vaceuchelus ampullus'' (Tate, 1893)
* ''Euchelus angulatus'' Pease, 1867; synonym of ''
Vaceuchelus angulatus'' (Pease, 1867)
* ''Euchelus bellus'' Hutton, 1873; synonym of ''
Herpetopoma bellum'' (Hutton, 1873)
* ''Euchelus bicinctus''
Philippi, 1849:
synonym of ''
Clanculus tonnerrei''
(G. Nevill & H. Nevill, 1874)
* ''Euchelus bourcierei'' Crosse, 1863: synonym of ''
Herpetopoma instrictum
''Herpetopoma instrictum'', common name the basket-like false top shell, is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.Bouchet, P. (2012). ''Herpetopoma instrictum'' (Gould, 1849). Retrieved through: World Re ...
'' (Gould, 1849)
* ''Euchelus bronni'' Dunker, 1860: synonym of ''
Clanculus bronni''
Dunker, 1860
* ''Euchelus corrugatus'' Pease, 1861: synonym of ''
Herpetopoma corrugatum'' (Pease, 1861)
* ''Euchelus erythraeensis'' Sturany, 1903; synonym of ''
Clanculus tonnerrei'' (G. Nevill & H. Nevill, 1874)
* ''Euchelus favosus'' Melvill & Standen, 1896; synonym of ''
Vaceuchelus clathratus'' (A. Adams, 1853)
* ''Euchelus fischeri'' (Montrouzier in Souverbie & Montrouzier, 1866): synonym of ''Monodonta fischeri'' Montrouzier
n Souverbie & Montrouzier 1866; synonym of ''Herpetopoma fischeri'' (Montrouzier
n Souverbie & Montrouzier 1866); synonym of ''
Herpetopoma exasperatum'' (A. Adams, 1853)
* ''Euchelus gemmula'' Turton, 1932; synonym of ''
Vaceuchelus gemmula'' (Turton, 1932)
* ''Euchelus gemmatus''
(Gould, 1845): synonym of ''
Herpetopoma gemmatum''
(Gould, 1845)
* ''Euchelus hachijoensis'' Pilsbry, 1904: synonym of ''
Herpetopoma rubrum'' (A. Adams, 1851)
* ''Euchelus lamberti'' (Souverbie in Souverbie & Montrouzier, 1875): synonym of ''
Tallorbis roseola'' G. Nevill & H. Nevill, 1869
* ''Euchelus lischkei'' Pilsbry, 1904: synonym of ''
Herpetopoma lischkei'' (Pilsbry, 1904)
* ''Euchelus midwayensis''
Habe & Kosuge, 1970: synonym of ''
Danilia eucheliformis''
(Nomura & Hatai, 1940)
* ''Euchelus natalensis'' E. A. Smith, 1906; synonym of ''
Vaceuchelus natalensis'' (E. A. Smith, 1906)
* ''Euchelus profundior'' May, 1915; synonym of ''
Vaceuchelus profundior'' (May, 1915)
* ''Euchelus providentiae'' Melvill, 1909: synonym of ''
Herpetopoma providentiae'' (Melvill, 1909)
* ''Euchelus quadricarinatus'' (Holten, 1802): synonym of ''
Euchelus asper'' (Gmelin, 1791)
* ''Euchelus ringens'' Schepman, 1908; synonym of ''
Herpetopoma ringens'' (Schepman, 1908)
* ''Euchelus ruber'': synonym of ''
Herpetopoma rubrum'' (A. Adams, 1853)
* ''Euchelus scabriusculus'' A. Adams & Angas, 1867; synonym of ''
Herpetopoma scabriusculum'' (A. Adams & Angas, 1867)
* ''Euchelus scrobiculatus'' (Souverbie, 1886); synonym of ''
Vaceuchelus scrobiculatus'' (Souverbie, 1866)
* ''Euchelus seychellarum'' G. Nevill & H. Nevill, 1869; synonym of ''
Herpetopoma seychellarum'' (G. Nevill & H. Nevill, 1869)
* ''Euchelus smithi''
Dunker, R.W., 1882: synonym of ''
Monilea smithi''
(Wood, 1828)
* ''Euchelus townsendianus'' Melvill & Standen, 1903; synonym of ''
Clypeostoma townsendianum'' (Melvill & Standen, 1903)
* ''Euchelus xeniolum'' Melvill, 1918; synonym of ''
Herpetopoma xeniolum
''Herpetopoma xeniolum'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.
D.G. Herbert (2012) wasn't convinced that this poorly known species belonged in the genus ''Herpetopoma'' and puts it in ''Herpetopoma ...
'' (Melvill, 1918)
References
* Vaught, K.C. (1989). ''A classification of the living Mollusca''. American Malacologists: Melbourne, FL (USA). . XII, 195 pp
Herbert D.G. (2012) A revision of the Chilodontidae (Gastropoda: Vetigastropoda: Seguenzioidea) of southern Africa and the south-western Indian Ocean. African Invertebrates, 53(2): 381–502
{{Taxonbar, from=Q3172745
Chilodontaidae
Gastropod genera