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. equestris. The equestrian Calyptræa. Pl. [32], fig. 4.

Species in which the internal appendage is like a horseshoe, open in front.

C. tectum-sinense. The Chinese roof Calyptræa.

Shell formed of separate, transverse, irregular round laminæ of uniform size, attached to each other by the summit on the exterior of each, presenting the appearance of a number of small flat Patellæ piled one on the other; colour yellowish, margin entire, very glossy within.

6. Crepidula. The Slipper Limpet. Six species.

Very similar to the Navicella, but distinguished from it by not having an operculum.

Shell irregular, form very variable, depressed or compressed; spire obliquely inclined to one side; margin entire; cavity large, divided by a horizontal partition, which gives it the form of a half-decked boat.

Crepidula fornicata.

C. porcellana.

C. aculeata.