Obesotoma tenuilirata

Obesotoma tenuilirata is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.[1]

Obesotoma tenuilirata
Shell of Obesotoma tenuilirata (holotype at the Smithsonian Institution)
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Mangeliidae
Genus: Obesotoma
Species:
O. tenuilirata
Binomial name
Obesotoma tenuilirata
(Dall, 1871)
Synonyms[1]
  • Bela tenuilirata Dall, 1871
  • Lora tenuilirata (Dall, 1871)
  • Obesotoma tenuilirata cymata Dall, 1919 (holotype)

Description

The length of the shell varies between 8 mm and 24 mm.

W.H. Dall considered this originally as perhaps a variety of Bela laevigata (synonym of synonym of Obesotoma laevigata (Dall, 1871)). It is pure white, with distinct revolving lines decussated by regular lines of growth. Only one specimen of this description was found, which is even more globular than the typical form, and has a deeper sinus and narrower aperture. It may be distinct.[2]

Distribution

This marine species occurs in the Sea of Japan, the Bering Sea and off Alaska (Point Barrow, Arctic Ocean, to the Shumagin Islands).

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References
  1. Obesotoma tenuilirata (Dall, 1871). Retrieved through: World Register of Marine Species on 10 August 2011.
  2. W.H. Dall, Descriptions of sixty new forms of mollusks from the West Coast of North America and the North Pacific Ocean, with notes on others already described; American Journal of Concholohy vol. 7, 1871 This article incorporates text from this source, which is in the public domain.
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