Bactrocythara

Bactrocythara
	Bactrocythara candeana
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Mangeliidae
Genus:	Bactrocythara; Woodring, 1928
Type species
	Bactrocythara obtusa; Guppy, R.J.L. in Guppy, R.J.L. & W.H. Dall, 1896
Species
	See text

Bactrocythara is a genus of small sea snails, marine gastropod mollusks in the family Mangeliidae.^[1]

General characteristics

(Original description) The small shell is very slender. The nucleus has a small tip and a deeply submerged apex that consists of three rapidly enlarging whorls; the last one and a half whorls are sculptured with closely spaced, protractive, curved axial riblets. The aperture is long and very narrow. An anterior canal is not differentiated, and the base is moderately emarginate. The outer lip is varicose, and the base bears a broad, shallow stromboid notch. The anal notch is broad and deep, with its apex expanded. The parietal callus is thickened adjacent to the notch, and the edge of the inner lip is detached.

The shell sculpture consists of narrow axial ribs that are strongly bent at the anal fasciole, together with weak spiral cords that lie between the ribs. The combination of hooked ribs, a very narrow aperture, a deep anal notch, and a large nucleus is characteristic of Bactrocythara. ^[2]

Species

Species within the genus Bactrocythara include:

Bactrocythara agachada Rolán, Otero-Schmitt & Fernandes, 1994
Bactrocythara asarca (Dall & Simpson, 1901)
† Bactrocythara ascara (W.H. Dall & C.T. Simpson, 1900) (probably a misspelling of Bactrocythara asarca (Dall & Simpson, 1901) )
Bactrocythara candeana (d'Orbigny, 1847)
Bactrocythara cryera (Dall, 1927)
Bactrocythara cubana Espinosa, Ortea & Moro, 2017
Bactrocythara haullevillei (Dautzenberg, 1912)
Bactrocythara labiosa (Smith E. A., 1872)
† Bactrocythara obtusa (R.J.L. Guppy, 1896)
† Bactrocythara pascaleae Landau, Van Dingenen & Ceulemans, 2020
† Bactrocythara tehuantepecensis Perrilliat, 1973 (uncertain > unassessed)

Species brought into synonymy

Bactrocythara thielei J. Knudsen, 1952: synonym of Bactrocythara labiosa (E.A. Smith, 1872)

References

↑ Bactrocythara. 7 August 2011. Retrieved through: World Register of Marine Species.
↑ W.P. Woodring. 1928. Miocene Molluscs from Bowden, Jamaica. Part 2: Gastropods and discussion of results . Contributions to the Geology and Palaeontology of the West Indies This article incorporates text from this source, which is in the public domain.

Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda.

External links

[WoRMS-1] Bactrocythara. 7 August 2011. Retrieved through: World Register of Marine Species.

[2] W.P. Woodring. 1928. Miocene Molluscs from Bowden, Jamaica. Part 2: Gastropods and discussion of results . Contributions to the Geology and Palaeontology of the West Indies This article incorporates text from this source, which is in the public domain.

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