Gymnobela illicita

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

Gymnobela illicita
Shell and protoconch of Gymnobela illicita (syntype at the Smithsonian Institution)
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Raphitomidae
Genus: Gymnobela
Species:
G. illicita
Binomial name
Gymnobela illicita
Dall, 1927

Description

The length of the shell attains 3.5 mm, its diamerter 1.2 mm.

(Original description) The minute, white shell has brown sinusigera protoconch consisting of 2½ whorls, followed by four subsequent whorls. The spire is acute, the suture appressed, somewhat constricted. The anal fasciole is rather wide, crossed by retractively concave wrinkles. The axial sculpture consists of about 10 prominent ribs, wider and slightly angulate at the periphery, varying in number in different specimens, up to 12, and extending nearly across the whorls, but obsolete on the base and on the anal fasciole. The spiral sculpture consists of two or three prominent threads near the periphery, overriding the ribs and half a dozen smaller ones on the base. The base is moderately convex. The aperture is subovate. The outer lip is thin and protractively arcuate. The columella is obliquely truncate in front. The siphonal canal is rather wide and slightly recurved.[2]

Distribution

This species occurs in the Atlantic Ocean off Georgia - Florida, USA

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References
  1. Gymnobela illicita Dall, 1927. Retrieved through: World Register of Marine Species on 29 March 2010.
  2. Dall, William Healey. "Small shells from dredgings off the southeast coast of the United States by the United States Fisheries Steamer Albatross in 1885 and 1886." Proceedings of the United States National Museum (1927) This article incorporates text from this source, which is in the public domain.
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
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