Gymnobela pulchra

Gymnobela pulchra
	Original image of a shell of Gymnobela pulchra
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Clade:	Caenogastropoda
Clade:	Hypsogastropoda
Clade:	Neogastropoda
Superfamily:	Conoidea
Family:	Raphitomidae
Genus:	Gymnobela
Species:	G. pulchra
Binomial name
	Gymnobela pulchra; (Schepman, 1913)
Synonyms[1]
	Surcula pulchra Schepman, 1913

Gymnobela pulchra is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.[1]

Description

The length of the shell attains 17.5 mm, its diameter 8 mm.

(Original description) The white, shortly fusiform shell is rather thin. It has a short siphonal canal and a pyramidal spire. The protoconch is wanting. The six remaining whorls are angular, separated by a conspicuous, waved suture, their upper part excavated. The sculpture consists of narrow axial ribs, 14 in the body whorl, oblique in the upper whorls, elegantly flexuous in last one and a row of oblique, short plicae, on a faint subsutural rib. The axial ribs end in rather sharp tubercles in their upper part at the limit of excavation. The ribs are crossed by narrow spiral lirae, 3 more conspicuous and some fainter ones on penultimate whorl, numerous, rather unequal ones on the body whorl. In crossing the ribs, they produce still 2 fainter tubercles on the lirae of penultimate whorl. Numerous ones on the body whorl, but not on the siphonal canal, where the ribs disappear. Moreover the shell is crossed by very fine growth-striae, more conspicuous in excavation and fine spiral striae, of which about 2 in excavation. The aperture is oval, angular above, ending in a short, wide siphonala canal below, slightly directed to the left. The peristome is thin, broken, according to growth-lines with a moderately wide and deep sinus, then protracted columellar margin concave above, slightly tortuous at the canal, with a thin layer of enamel. The interior of the aperture is smooth and white. [2]

Distribution

This marine species occurs in the Banda Sea, Indonesia.

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References

Gymnobela pulchra (Schepman, 1913). Retrieved through: World Register of Marine Species on 29 March 2010.
Schepman, 1913. The prosobranchia of the Siboga expedition. Part IV -V - VI: Toxoglossa This article incorporates text from this source, which is in the public domain.

External links

Sysoev, Alexander (1997). Crosnier, A.; Bouchet, P. (eds.). "Mollusca Gastropoda: New deep-water turrid gastropods (Conoidea) from eastern Indonesia" (PDF). Résultats des Campagnes MUSORSTOM. Mém. Mus. natn. Hist. nat. 16 (172): 325–355. ISBN 2-85653-506-2. Retrieved 11 October 2014.
Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.

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[WoRMS-1] Gymnobela pulchra (Schepman, 1913). Retrieved through: World Register of Marine Species on 29 March 2010.

[2] Schepman, 1913. The prosobranchia of the Siboga expedition. Part IV -V - VI: Toxoglossa This article incorporates text from this source, which is in the public domain.