Gymnobela lanceata

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

Gymnobela lanceata
Shell and protoconch of Gymnobela lanceata (holotype at the Smithsonian institution)
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Raphitomidae
Genus: Gymnobela
Species:
G. lanceata
Binomial name
Gymnobela lanceata
Dall, 1927
Synonyms[1]
  • Gymnobela (Theta) lanceata Dall, 1927
  • Theta lanceata (Dall, 1927)

Description

The length of the shell attains 3 mm, its diameter 1.5 mm.

(Original description) The minute, white, acute shell has a sinusigera protoconch consisting of 4 whorls followed by two subsequent whorls. The suture is appressed, bordered in front by close, short, axial wrinkles. The anal fasciole is slightly concave, wide, extending to the angle at the shoulder. The axial sculpture consists of about 15 low, short oblique ribs most prominent at the shoulder, with wider interspaces and obsolete in front of the periphery. The spiral sculpture consists of faint spiral striations visible only under the lens. The aperture is subovate. The siphonal canal is long, narrow and straight. The columella is straight and attenuated in front.[2]

Distribution

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

References
  1. Gymnobela lanceata 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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