Semicassis labiata explained

Semicassis labiata (formerly also known as Phalium labiatum) is a species of large predatory sea snail, a marine gastropod mollusc. This species is in the subfamily Cassinae, the "helmet shells" and "bonnet shells", which feed on sea urchins.^[1]

Subspecies

• Semicassis labiata iheringi (Carcelles, 1953)^[2]
• Semicassis labiata labiata (G. Perry, 1811)^[2]
• Semicassis labiata zeylanica (Lamarck, 1822)

Distribution

This species occurs in New Zealand^[3]

Description

The maximum recorded shell length of Semicassis labiata iheringi is 76 mm.^[4] Also trawled at 70-75 m. depth, off Sao Paulo, Brazil.

Habitat

The minimum recorded depth of Semicassis labiata iheringi is 25 m, and the maximum recorded depth is 84 m.^[4]

References

• Finlay, H. J. (1928). The Recent Mollusca of the Chatham Islands. Transactions of the New Zealand Institute. 59: 232–286.
• Dautzenberg, Ph. (1929). Mollusques testacés marins de Madagascar. Faune des Colonies Francaises, Tome III
• MacDonald & Co (1979). The MacDonald Encyclopedia of Shells. MacDonald & Co. London & Sydney.
• Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. pp 196–219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch

External links

• Perry G. (1811). Conchology, or the natural history of shells: containing a new arrangement of the genera and species, illustrated by coloured engravings executed from the natural specimens, and including the latest discoveries. 4 pp., 61 plates. London

Notes and References

1. Gofas, S. (2012). Semicassis labiata (Perry, 1811). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=533621 on 2012-07-15
2. WoRMS (2010). Semicassis labiata. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=533621 on 2011-02-17
3. [Arthur William Baden Powell|Powell A. W. B.]
4. Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. .