viii CONTENTS 



I'.\(.K 



III. STERNUM 70 



V. SKULL 74 



General part 74 



a. Brain-case 76 



b. Visceral Skeleton 80 



c. Bones of the Skull 82 



Special part 84 



A. The Skull of Fishes ........ 84 



B. ,, of Amphibians 97 



o. ,, of Reptiles 108 



D. ,, of Birds ... 120 



E. ,, of Mammals 123 



VI. APPENDICULAR SKELETON 135 



a. Unpaired Fins 136 



b. Paired Fins or Limbs 137 



Pectoral Arch . . 140 



of Fishes 140 



of Amphibians 141 



of Reptiles 142 



of Birds 143 



of Mammals 143 



Pelvic Arch 145 



of Fishes 145 



of Amphibians 146 



of Reptiles 149 



of Birds 152 



of Mammals 154 



Paired Fins of Fishes 155 



Paired Limbs of the higher Yertebrata 159 



of Amphibians 161 



of Reptiles .163 



of Birds 165 



of Mammals 168 



C. MUSCULAR SYSTEM .... 173 



INTEGUMENTARY MUSCLES 175 



MUSCLES OF THE TRUNK 179 



of Amphioxus and Fishes 179 



of Amphibians . . . 181 



of Reptiles 181 



of Birds . 182 



of Mammals 183 



MUSCLES OF THE DIAPHRAGM . 184 



