Excerpt from A Monograph on the Sub-Class Cirripedia: With Figures of All the Species In the liver being formed on the molluscous type; I do not think this is the case, but I do not quite understand the point in question. 6th. In not having a head or organs of sense this is singularly erroneous: Professor Leidy has shown the existence of eyes in the mature Cirripede; the antennae, though preserved, certainly become functionless soon after the last metamorphosis but there exist other organs of sense, which I believe serve for smelling and hearing: and lastly, so far from there being no head, the whole of the Cirripede externally Visible, consists exclusively of the three anterior segments of the head. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.