Publisher's Synopsis
Excerpt from A Contribution Towards the Revision of the Passalidae of the World
The study of a general collection of Passalidae, from parts of the world other than the Oriental Region, at once throws light on the question of the morphology of the anterior part. Of the head, a question which seemed most difficult before. It confirms as true for most species of Passalidae the suggestion, made on p. 337 of my Account of the Oriental Passalidae, that the whole of the upper surface of the anterior part of the head between the supra-orbital ridges and in front of the frontal ridges is frons, the whole of the clypeus being doubled beneath this out of Sight but it shows that this is not true of all specie and that the groove which I supposed to represent the suture between the clypeus and frons is probably situated beyond the lateral extremities of the former plate. 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.