Crassiclava layardi

Crassiclava layardi is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.[1]

Crassiclava layardi
Apertural view of a shell of Crassiclava layardi
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Pseudomelatomidae
Genus: Crassiclava
Species:
C. layardi
Binomial name
Crassiclava layardi
(Sowerby III, 1897)
Synonyms[1]
  • Clavatula hottentota Barnard, 1958
  • Crassispira hottentota Kilburn, 1970
  • Crassispira layardi (Sowerby III, 1897)
  • Drillia hottentota (non Smith, 1882); (partim) Barnard, 1958
  • Drillia layardi (Sowerby III, 1897)
  • Drillia sowerbyi Turton, 1932 (non Pleurotoma sowerbyi Reeve, 1843)
  • Pleurotoma castanea (non Reeve, 1845) Sowerby, 1886
  • Pleurotoma layardi Sowerby III, 1897
  • Pleurotoma (Drillia) layardi Sowerby III, 1897 (original combination)

Description

The length of the shell attains 12 mm, its diameter 4 mm.

The smooth, turreted, narrowly claviform shell is reddish brown to uniform dark brown. It shows 7 moderately strong longitudinal ribs. It contains 7 obtusely angulated whorls, above the shoulder slightly concave, below almost convex. The spiral lirae are feeble. The aperture is oblong-ovate. The columella is upright and shows a slight callus on top. The outer lip is arcuate with a wide sinus and not deeply emarginate.[2]

Distribution

This marine species occurs from Table Bay to East London, Republic South Africa

References
  1. Crassiclava layardi (Sowerby III, 1897). Retrieved through: World Register of Marine Species on 7 July 2012.
  2. Sowerby III, G. B. (1897). Appendix to marine shells of South Africa : a catalogue of all the known species with references to figures in various works, descriptions of new species, and figures of such as are new, little known, or hitherto unfigured. London: G.B. Sowerby, 42 pp., 8 pls.
  • Turton W.H. (1932). Marine Shells of Port Alfred, S. Africa. Humphrey Milford, London, xvi + 331 pp., 70 pls. page(s): 22, pl. 4, sp. 170
  • Kilburn, R.N. & Rippey, E. (1982) Sea Shells of Southern Africa. Macmillan South Africa, Johannesburg, xi + 249 pp. page(s): 116
  • Steyn, D.G. & Lussi, M. (1998) Marine Shells of South Africa. An Illustrated Collector's Guide to Beached Shells. Ekogilde Publishers, Hartebeespoort, South Africa, ii + 264 pp.

page(s): 152

Wikimedia Commons has media related to Crassiclava layardi.
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
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