Microdrillia circumvertens

Microdrillia circumvertens
Original drawing of a shell of Microdrillia circumvertens
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Borsoniidae
Genus:	Microdrillia
Species:	M. circumvertens
Binomial name
Microdrillia circumvertens (Melvill & Standen, 1901)
Synonyms
Drillia circumvertens Melvill & Standen, 1901 (original combination)

Microdrillia circumvertens is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.

Description

The height of the small, milky-white shell attains six mm, its width 2.25 mm. It has an ovate-fusiform shape, containing eight whorls. The body whorl is bicarinate. It is a highly spirally carinate and lirate species. The short canal and wide sinus proclaim it rightly placed in Microdrillia and the acute carinae are peculiar. The aperture is oblique and oblong, with the columella containing no plications.

Distribution

This marine species occurs from the Gulf of Oman to Transkei, South Africa

References

External links

• Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. (2011) A new operational classification of the Conoidea. Journal of Molluscan Studies 77: 273–308^{[link removed]}