Excerpt from Marine Investigations in South Africa, Vol. 5The animal has large, rather flattened tentacles, the sole of the foot not narrow, with distinct margins, the wings high, meeting behind and connecting with the tail; on the mantle no aperture could be detected, the somewhat grayish gill 22 mm. Long by a height of 10 and a thickness of 6, nearly its half freely projecting, the number Of groups of lamellae about 15.The shell 23 cm. In length with a breadth of 2 and a height Of about 05; of quite usual form, with a thin calcified, very fragile layer and a rather large cuticular margin.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.