Crassispira rudis explained

Crassispira rudis, common name the rustic pleurotoma, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.

Description

The length of the shell varies between 11 mm and 28 mm.

(Original description) The thick, turreted shell is very dark brown, almost black. The whorls are contracted in the middle, tuberculated above and below, each of the lower tubercles having a white spot above it. The body whorl is rather out of the centre. The siphonal canal is short. The outer lip is thin, sinuous, armed above the sinus with a strong callosity ^[1]

Distribution

This marine species occurs between the Sea of Cortez, Western Mexico and Ecuador

References

• G.B. Sowerby I (1833), Proc. Zool. Soc., p. 138

External links

• Tucker . J.K. . 2004 . Catalog of recent and fossil turrids (Mollusca: Gastropoda) . Zootaxa . 682 . 1–1295 . 10.11646/zootaxa.682.1.1 .
  • W.H. Dall (1909), Report on the collection of shells from Peru ;Proceedings of the United States National Museum, Vol. 37, pages 147–294, with Plates 20—28

Notes and References

1. https://archive.org/details/conchologiaiconi01reev Conchologia iconica, or, Illustrations of the shells of molluscous animals; Reeve, Lovell, Brooks, Vincent, Reeve, Frederic, Sowerby, G. B. (George Brettingham), Taylor, John Edward, Reeve Benham & Reeve, Savill, Edwards and Co., Spottiswoode & Co. Vincent Brooks, Day & Son, ; vol.1 (1843)