viii CONTENTS 



PAGE 

 III. STERNUM 70 



V. SKULL 74 



General part 74 



a. Brain -case 7(i 



/*. Visceral Skeleton 80 



c. Bones of the Skull 82 



Special part 84 



A. The Skull of Fishes . . . . 84 



i:. ,, of Amphibians ... ... 97 



c. ,, 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 i;,2 



of Mammals 154 



Paired Fins of Fishes 155 



Paired Limbs of the higher Vertebrata 159 



of Amphibians 161 



of Reptiles . 163 



of Birds 165 



of Mammals 168 



C. MUSCULAR SYSTEM . 173 



INTEliUMENTARY MUSCLES . .... 175 



MUSCLES OF THE TRUNK 17'.) 



of Amphioxus and Fishes 17 ( .t 



of Amphibians . 181 



of Reptiles 181 



of Birds ... . .182 



of Mammals . 183 



MUSCLKS OF TIII: HI \I-IIKAI;M . 184 



