Spirotropis cymothoe

Spirotropis cymothoe
Original image of a shell of Spirotropis cymothoe
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Drilliidae
Genus: Spirotropis
Species: S. cymothoe
Binomial name
Spirotropis cymothoe
(Dall, 1919)
Synonyms[1]

Cryptogemma cymothoë W.H. Dall, 1919

Spirotropis cymothoe is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.[1]

Description

The length of the (decollated) shell attains 9 mm, its diameter 5 mm.

(Original description) The shell much resembles Cryptogemma calypso Dall, 1919, from which it differs by having the anal fasciole striated spirally, the surface in front of the shoulder without spiral sculpture and minutely vermiculate, the ribs more knob-like, shorter, and averaging about 12 on the body whorl. The shell contains 6 whorls. The apex is always eroded.[2]

Distribution

This marine species occurs in the Pacific Ocean off San Diego, Lower California at a depth of 650 m.

References

  1. 1 2
  2. ↑ Dall (1919) Descriptions of new species of Mollusca from the North Pacific Ocean; Proceedings of the U.S. National Museum, vol. 56 (1920) (described as Cryptogemma cymothoë)

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