Excerpt from Proceedings of the California Academy of Sciences, 1985-1986, Vol. 44 Nomenclature for, and the method of enu meration of, dermal plates follow the system out lined by Gruchy (1969) with the following ad ditions: the number of plates anterior or posterior to a fin is counted to or from, but not including, the plate on which the first or last ray of the fin is inserted; the ventrolateral series of plates is considered to start at the pelvic fin base. 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.