Bathytoma fissa

Bathytoma fissa
	Original drawing of Bathytoma fissa
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Borsoniidae
Genus:	Bathytoma
Species:	B. fissa
Binomial name
	Bathytoma fissa; (Martens, 1901)
Synonyms[1]
	Genota (Dolichotoma) fissa Martens, 1901 (original combination); Parabathytoma fissa (Martens, E.C. von, 1901); Pleurotoma fissa Martens, 1901;

Bathytoma fissa is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.[1]

Description

The length of the shell attains 32 mm. The white, biconical shell is multigranulated. The suture has a narrow split. The shell contains 9 whorls; the first two smooth and globular, with the following regularly increasing. Below the suture there are numerous, oblique, small plicae. The keel is nodulose and the granulose cingula are alternately smaller sculpted. The last base tapers gradually. The outer lip is thin. The edge of the rectilinear columella is subcallose. The keel is on the 3rd to 7th whorl closer to the bottom than the top. On the penultimate whorl it is approximately in the middle between the two.[2]

Distribution

This species occurs in the Indian Ocean off Somalia.

References

Bathytoma fissa (Martens, 1901). Retrieved through: World Register of Marine Species on 12 August 2011.
von Martens (1904) Die beschalten Gastropoden der deutschen Tiefsee-Expedition, 1898–1899.. In. A. Systematisch-geographischer Theil., vol. 7 Wissenschaftliche Ergebnisse der deutschen Tiefsee-Expedition auf dem Dampfer "Valdivia" 1898–1899, 1–146 (described as Genota (Dolichotoma) fissa)

Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. (2011) A new operational classification of the Conoidea. Journal of Molluscan Studies 77: 273-308.

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[WoRMS-1] Bathytoma fissa (Martens, 1901). Retrieved through: World Register of Marine Species on 12 August 2011.

[2] von Martens (1904) Die beschalten Gastropoden der deutschen Tiefsee-Expedition, 1898–1899.. In. A. Systematisch-geographischer Theil., vol. 7 Wissenschaftliche Ergebnisse der deutschen Tiefsee-Expedition auf dem Dampfer "Valdivia" 1898–1899, 1–146 (described as Genota (Dolichotoma) fissa)