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

C. unguiformis.

C. dilatata.

C. Peruviana.

C. porcellana. The brown-spotted Crepidula.

Shell thick, flat, summit not spiral.

C. aculeata. The prickly Crepidula.

Oval, brown, roughly striated, vertex recurved, interior blue or purple.

C. sub-spirata. The sub-spiral Crepidula. Pl. [32], fig. 2.

Species almost round, summit sub-spiral; colour yellowish white, with a bluish tinge towards the summit.

7. Ancylus. The Lake Limpet. Two species.