Coluzea rotunda explained

Coluzea rotunda is a species of large sea snail, a marine gastropod mollusk in the family Columbariidae.

Description

The length of the shell attains 75 mm.

The shell is relatively thin, with a long, slender, and straight siphonal canal. The whorls are rounded, with the periphery featuring at most low spines, primarily on the apical spire whorls. The rest of the shell is sculpted with rounded axial ribs intersected by spiral cords, which are most prominent below the periphery. ^[1]

The shell is uniformly white, covered by a pale khaki-brown periostracum.

Distribution

This marine species is endemic to South Africa and occurs off the west coast, off Atlantic Cape region (Alexander Bay to Cape Point), at depths between 200 m and 400 m.

References

• Book: Steyn DG and Lussi M. . Offshore shells of southern Africa: A pictorial guide to more than 750 gastropods. . 2005 . published by the authors . 172.
• Book: Marais J.P. & Kilburn R.N. . Turbinellidae. Pp. 300-310, in: Marais A.P. & Seccombe A.D. (eds), Identification guide to the seashells of South Africa. Volume 1 . 2010 . Centre for Molluscan Studies . Groenkloof . 1–376.

External links

• Darragh . T.A. . A revision of the family Columbariidae (Mollusca: Gastropoda) . Proceedings of the Royal Society of Victoria . 1969 . 83 . 1 . 106 .

Notes and References

1. Book: Herbert, D.G., Jones, G.J. & Atkinson, L.J. . Phylum Mollusca. In: Atkinson, L.J. and Sink, K.J. (eds) Field Guide to the Offshore Marine Invertebrates of South Africa . 2018 . Malachite Marketing and Media . Pretoria . 289 . 10.15493/SAEON.PUB.10000001 . 978-1-86868-098-6. 17 October 2024.