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

Shell more or less turreted, generally tuberculated; aperture small, oval, oblique; the columellar edge hollowed, callous; the right edge sharp, and dilating a little with age; operculum horny, oval, rounded, sub-spiral, and striated.

Cerithium giganteum.

C. palustre.

C. sulcatum.

C. telescopium.

C. ebeninum.

C. erythræonense.

C. muricatum.

C. radula.

C. crassum.