Publisher's Synopsis
Excerpt from Studies on the Deep Sea Protobranchia: The Subfamily Spinulinae (Family Nuculanidae)
Ligament amphidetic, with well-developed external part; internal part inset as resilium into hinge plate below umbo, externally extended by outer layer and fused periostracum. Hind gut spirally coiled to right (except in S. Calcar, which Knudsen [1970] figures with a single loop). 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.