LIST OF ILLUSTRATIONS 



FIG. PAGE 



183 Balanoglossus, section of 



anterior end 311 



184 Ascidia 313 



185 ,, dissection .... 315 



1 86 ,, longitudinal section 317 



187 ,, larva 319 



1 88 ,, metamorphosis . 320 



189 Botryllus 321 



190 Amphioxus 322 



191 ,, diagram of anatomy 325 



192 Dog-fish 328 



193 Lizard 330 



194 Rabbit, skeleton, with out- 



line of body 331 



195 Vertebrae of Dog-fish . . 333 



196 ,, Lizard ... 334 



197 ,, Rabbit ... 334 



198 Skull of Dog-fish .... 337 



199 ,, Lizard 338 



200 Diagrams of limbs and 



limb-girdles .... 340 



201 Section of tooth .... 342 



202 Dog-fish, dissection . . . 343 



203 Lizard, viscera 346 



204 Diagram of circulation in 



a fish 349 



205 Dog-fish, brain 352 



206 Section of eye 355 



207 Lamprey 360 



208 Myxine and Bdellostoma . 361 



209 Lamprey, dissection . . . 363 



210 Dog-fish, pectoral arch 



and fin 371 



211 Diagram of vascular 



system of a fish .... 375 



212 Dog-fish, brain and 



cerebral nerves .... 379 



213 egg-case ... 382 



214 ,, embryo .... 383 



215 Shark 384 



216 Sting-ray 385 



FIG. PAGE 



217 Sting-ray, skeleton . . . 387 



218 Heptanchus, skull . . 389 



219 Trout 392 



220 ,, skeleton of tail . . 394 



221 Pleuronectes 395 



222 Ctenoid and ganoid scales 396 



223 Polypterus 396 



224 Sturgeon, skull 397 



225 Salmo, skull 398 



226 Sargus, teeth 399 



227 Hippocampus 401 



228 Ceratodus 403 



229 ,, anterior portion 



of skeleton 404 



230 Frog 406 



231 ,, skeleton 409 



232 ,, skull 411 



233 ,, shoulder-girdle . . . 412 



234 ,, hip-girdle ..... 413 



235 ,, dissection 415 



236 ,, heart 417 



237 ., arteries 419 



238 ,, veins 421 



239 ,, brain 423 



240 ,, urinogenital organs of 



male 425 



241 ,, urinogenital organs of 



female 426 



242 ,, stages in life-history . 427 



243 Salamander 429 



244 Siren 430 



245 Pygopus 434 



246 Hatteria 435 



247 Tortoise 436 



248 Crocodile, skeleton . . . 439 



249 Tortoise, skeleton . . . 440 



250 Turtle, section of skeleton 441 



251 Rattlesnake, skull . . . 442 



252 Lizard, pectoral arch and 



sternum 444 



253 Monitor, heart 446 



