Cyclostrema subexcavatum

Cyclostrema subexcavatum
Original drawing with two views of a shell of Cyclostrema subexcavatum
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Superfamily: Trochoidea
Family: Liotiidae
Genus: Cyclostrema
Species: C. subexcavatum
Binomial name
Cyclostrema subexcavatum
Tryon, 1888
Synonyms
  • Cyclostrema (Daronia) subexcavata Tryon, 1888 (original description)
  • Cyclostrema excavata Watson, 1886 (preoccupied by Carpenter)

Cyclostrema subexcavatum is a species of sea snail, a marine gastropod mollusk in the family Liotiidae.[1]

Description

(Original description by G.W. Tryon) The height of the shell attains 2.2 mm. The umbilicus is wide, perspective and shallow. The shell is whitish under a yellowish brown, membraneous epidermis. The spire is scarcely raised. The 4 whorls increase rather slowly until the last, which is rather large. The suture is broadly,angularly impressed. A little below the suture there is a bluntly angulated spiral keel. And on the middle of the base, towards the oblique aperture there is another keel. The thin peristome is simple.[2]

Distribution

This marine species occurs off Puerto Rico at a depth of about 700 m.

References

External identifiers for Cyclostrema subexcavatum
Encyclopedia of Life 19661339
WoRMS 532707
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