1. _Pœcilasma Kæmpferi_, Darwin. ('Lepadidæ,' p. 102, Tab. 2, fig. 1.)
P. valvis 5; carinæ basi truncatâ et cristatâ: scutorum dentibus
internis umbonalibus fortibus: tergorum acumine basali truncato,
margini occludenti pæne parallelo.
_Hab._ in Japaniâ.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2) The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. · 第 299 / 417 题