Gymnobela is a genus of , marine gastropod in the family Raphitomidae.
This genus can sometimes be hardly differentiated from species in the genera Spergo Dall, 1895, Theta Clarke, 1959 and Speoides yoshidae Kuroda & Habe in Habe, 1961 (a synonym of Gymnobela yoshidae (Kuroda & Habe, 1961) )[ Stahlschmidt P. & Chino M. (2012) A new species of Gymnobela (Gastropoda: Raphitomidae) from the Central Pacific. Miscellanea Malacologica 5(6): 95-98]
This genus is highly diverse. It is rather an artificial assemblage of several unrelated genus-level lineages that are unrelated and mostly undescribed.[Criscione, Francesco, et al. (2020) "Where the snails have no name: a molecular phylogeny of Raphitomidae (Neogastropoda: Conoidea) uncovers vast unexplored diversity in the deep seas of temperate southern and eastern Australia." Zoological Journal of the Linnean Society.]
Description
The rather solid shell is in form and general appearance like Bela. The spire is generally rather short. The
body whorl is swollen. The whorls are often shouldered. The sculpture is rather strong. The
protoconch has a fine cancellated sculpture. The subsutural band is not strongly marked. The posterior notch of the lip is shallow and usually not very distinct. The operculum is absent.
[ Verrill A. E. (1884). Second catalogue of mollusca recently added to the fauna of the New England Coast and the adjacent parts of the Atlantic, consisting mostly of deep sea species, with notes on others previously recorded. Transactions of the Connecticut Academy of Arts and Sciences, 6(1): 139-294, pl. 28-32][ Bouchet & Warren, Revision of the North-East Atlantic bathyal and abyssal Turridae (Mollusca, Gastropoda); The Journal of Molluscan Studies, supplement 8, December 1980]
Fossils have been found in Pliocene strata of Panama and Quaternary strata of Costa Rica (age range: 3.6 to 0.781 Ma).
Species
Species within the genus
Gymnobela include:
- Species brought into synonymy
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Gymnobela adenicus sic: synonym of Gymnobela adenica Sysoev, 1996
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Gymnobela agassizi sic: synonym of Gymnobela agassizii (Verrill & S. Smith in, 1880)
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Gymnobela bathyiberica Fechter, 1976 : synonym of Theta vayssierei (Dautzenberg, 1925)
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Gymnobela blakeana extensa Dall, 1881 : synonym of Mioawateria extensa (Dall, 1881)
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Gymnobela brevis Verrill, 1885: synonym of Gymnobela blakeana (Dall, 1881)
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Gymnobela chariessa (Watson, 1881): synonym of Theta chariessa (Watson, 1881)
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Gymnobela curta Verrill, 1884: synonym of Gymnobela aquilarum (Watson, 1882)
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Gymnobela extensa (Dall, 1881):
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Gymnobela fulvocincta Dautzenberg & Fischer, 1896: synonym of Gymnobela fulvotincta (Dautzenberg & Fischer, 1896)
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Gymnobela fulvotincta (Dautzenberg & Fischer, 1896):
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Gymnobela gregaria Sykes, 1906: synonym of Gymnobela leptoglypta (Dautzenberg & Fischer, 1896)
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Gymnobela grundifera Dall, 1927: synonym of Daphnella grundifera (Dall, 1927)
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Gymnobela gypsata (Watson, 1881): synonym of Austrobela gypsata (R. B. Watson, 1881)
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Gymnobela holomera Locard, 1897: synonym of Gymnobela pyrrhogramma (Dautzenberg & Fischer, 1896)
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Gymnobela homeotata (Watson, 1886): synonym of Gymnobela homaeotata (Watson, 1886)
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Gymnobela imitator Dall, 1927: synonym of Pleurotomella imitator (Dall, 1927)
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Gymnobela judithae Clarke, 1989: synonym of Mioawateria extensa (Dall, 1881)
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Gymnobela leptoconchum Locard, 1897: synonym of Gymnobela emertoni (Verrill & Smith in Verrill, 1884)
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Gymnobela lyroniclea sic: synonym of Gymnobela lyronuclea (A.H. Clarke, 1959): synonym of Theta lyronuclea (A.H. Clarke, 1959)
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Gymnobela lyronuclea (A.H. Clarke, 1959): synonym of Theta lyronuclea (A.H. Clarke, 1959)
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Gymnobela malmii (Dall, 1889):
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Gymnobela micraulax Sysoev, 1997:
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Gymnobela nudator (Locard, 1897): synonym of Bathybela nudator (Locard, 1897)
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Gymnobela pinguis Locard, 1897: synonym of Gymnobela aquilarum (Watson, 1882)
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Gymnobela procera Sysoev & Bouchet, 2001
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† Gymnobela pusula (Laws, 1947): synonym of † Acanthodaphne pusula (Laws, 1947)
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Gymnobela pycnoides Dautzenberg & Fischer, 1896: synonym of Mioawateria malmii (Dall, 1889)
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Gymnobela pyrrhogramma (Dautzenberg & Fischer, 1896)
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Gymnobela recondita Tiberi, 1869: synonym of Gymnobela pyrrhogramma (Dautzenberg & Fischer, 1896)
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Gymnobela rhomboidea Thiele, 1925: synonym of Mioawateria rhomboidea (Thiele, 1925)
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Gymnobela sibogae (Schepman, 1913):
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Gymnobela subangulata Verrill, 1884: synonym of Gymnobela aquilarum (Watson, 1882)
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Gymnobela tenelluna (Locard, 1897): synonym of Bathybela tenelluna (Locard, 1897)
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Gymnobela tenellunum sic: synonym of Gymnobela tenelluna (Locard, 1897): synonym of Bathybela tenelluna (Locard, 1897)
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Gymnobela tincta Verrill, 1885: synonym of Gymnobela emertoni (Verrill & Smith in Verrill, 1884)
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Gymnobela vayssierei (Dautzenberg, 1925): synonym of Theta vayssierei (Dautzenberg, 1925)
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Gymnobela virgo (Okutani, 1966): synonym of Bathytoma virgo (Okutani, 1966)
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Gymnobela watsoni (Dautzenberg, 1889):
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