1. Phyllidia. Three species.

The animals of this genus are covered with a coriaceous skin, but

without a shell.

Phyllidia varicosa.

P. pustulosa.

P. ocellata.

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. · 第 133 / 258 题