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

M. punctulata.

M. tricarinata.

M. canaliculata.

M. Seminigra.

M. rosea.

M. lineata.

M. coronaria. The crowned Monodonta.

Species in which the columella greatly projects, and the spire is entirely flat; covered with numerous small tubercles; colour white; the columella tinged with red.

M. labio. The double-lipped Monodonta. Pl. [23], fig. 2.

Species sub-globular, umbilicated, spiral whorls rounded; the columella terminated by a tooth.