xvi CONTENTS 



URINARY ORGANS P 349 



of Amphioxus 349 



of Cyclostomes, Fishes and Dipnoans 350 



of Amphibians 352 



of Reptiles and Birds 356 



of Mammals 358 



GENERATIVE ORGANS 359 



of Amphioxue 359 



of Cyclostomes 359 



of Fishes and Dipnoans 360 



of Amphibians 365 



of Reptiles and Birds 368 



of Mammals 370 



COPULATORY ORGANS 377 



SUPRARENAL BODIES 385 



APPENDIX (Bibliography) 389 



INDEX . . 481 



