A Manual of Conchology / According to the System Laid Down by Lamarck, with the Late Improvements by De Blainville. Exemplified and Arranged for the Use of Students.

by Thomas Wyatt

Sigaretus Haliotoideus.

S. convexus.

S. lævigatus.

S. cancellatus.

S. convexus. The convex Sigaretus. Pl. [22], fig. 2.

Very thin, smooth, back convex, spire white, rather prominent; aperture very expanded; umbilicus rather deep; yellow, with a reddish tinge, transversely striated.

S. Haliotoideus. The Haliotis-shaped Sigaretus.

Species thick, solid, depressed; spire flattish, aperture exposing the whole of the interior.

2. Stomatella. Five species.

To be easily distinguished from the Stomatia by not having a transversal rib.