The alligator and its allies
New original cover art included with this eBook is granted to the public domain.
Copyright, 1907, by Doubleday, Page & Company
Alligator Mississippiensis. (After Ditmars.)
(Reproduced by Permission of Doubleday, Page & Company.)
By
Albert M. Reese, Ph.D.
Professor of Zoölogy in West Virginia University Author of “An Introduction to Vertebrate Embryology”
With 62 Figures and 28 Plates
G. P. Putnam’s Sons New York and London The Knickerbocker Press 1915
Copyright, 1915 BY ALBERT M. REESE The Knickerbocker Press, New York
The purpose of this volume is to bring together, in convenient form for the use of students of zoölogy, some of the more important details of the biology, anatomy, and development of the Crocodilia. For obvious reasons the American Alligator is the species chiefly used.
In the first chapter the discussion of the alligator is largely the result of the personal observations of the author; the facts in regard to the less familiar forms are taken from Ditmars and others. The description of the skeleton, with the exception of short quotations from Reynolds, is the author’s.
A. M. Reese
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PREFACE
CONTENTS
ILLUSTRATIONS
Classification
Ancestry
Geographical Distribution
Alligator Mississippiensis
The Chinese Alligator
The Caiman
The American Crocodile
A. The Exoskeleton
B. The Endoskeleton
The Chewing Muscles
Muscles of the Ventral Surface of the Neck
Dorsal Neck Muscles
The Muscles of the Scapula
Muscles of the Forearm
The Abdominal Muscles
Muscles of the Posterior Appendages
The Tail Muscles
Spinal Cord
Brain
The Cranial Nerves (Crocodile)
The Spinal Nerves
Special Sense Organs
The Oral Cavity
The Œsophagus
The Stomach
The Intestine
The Histology of the Enteron of the Florida Alligator
The Heart
The Venous System
The Arterial System
Lettering for Figures 59-62
Introduction
The Egg
The Development of the Embryo
LETTERING FOR ALL FIGURES ON PLATES VI.-XXVIII.
EXPLANATION OF FIGURES 1-26 ON PLATES VI.-XXVIII.
BIBLIOGRAPHY
INDEX
Transcriber’s Notes