LIST OF ILLUSTRATIONS xxv 



FIG. PAGE 



296. Callus bankiva, domestic fowl, egg at time of hatching . 489 



297. Lepus cuniculus, side view of skeleton with outline of body 492 



298. Lepus cuniculus, atlas and axis .- . 494 



299. Lepus cuniculus, skull, side, and ventral view . . . 497 



300. Lepus cuniculus, shoulder girdle . . . . . 501 



301. Lepus cuniculus, distal end of fore-leg and carpus . . 502 



302. Lepus cuniculus, innominate bones and sacrum . . . 503 



303. Lepus cuniculus, bones of hind foot ..... 504 



304. Lepus cuniculus, lateral dissection of head, neck, and thorax 506 



305. Lepus cuniculus, stomach, intestine, and liver, etc. . . 508 



306. Lepus cuniculus, heart, from right side .... 509 



307. Lepus cuniculus, the vascular system 511 



308. Lepus cuniculus, larynx, ventral and dorsal views . . 513 



309. Lepus cuniculus, brain, dorsal and ventral view . . . 514 



310. Lepus cuniculus, two dissections of brain .... 516 



311. Lepus cuniculus, longitudinal vertical section of brain . 518 



312. Lepus cuniculus. urogenital organs 519 



313. Lepus cuniculus, anterior end of vagina, with right uterus, etc. 521 



314. Duck-bill, Ornithorhynchus anatinus 526 



315. Spiny ant-eater, Echidna aculeata ..... 527 



316. Virginian Opossum, Didelphys virginiana .... 528 



317. Dasyure, Dasyurus viverrinus 529 



318. Rock wallaby, Petrogale xanthopus 530 



319. Koala, Phascolarctos cinereus 531 



320. Unau, or two-toed sloth 532 



321. Tatu armadillo, Dasypus sexcinctus 533 



322. Scaly ant-eater, Manis pentadactyla 534 



323. Aard-vark, Orycteropus capensis 534 



324. Killer, Orca gladiator 535 



325. Section of upper jaw, with baleen plates, of Babenoptera . 536 



326. Harbor seal, Phoca vitulina 540 



327. Bat, Synotus barbastellus . 542 



