LIST OF ILLUSTRATIONS. XV 



no. PAGE 



66 Ventral view of the shoulder-girdle and sternum of a Duckbill 



(Ornithorhynchus paradoxus) 347 



67 Cervical vertebrae of a Ca'ing Whale (Globicephalus mclas) . 354 



68 Dentition of a Dog (Canis familiar is) 375 



69 Atlas and axis vertebrae of a Dog (Canis familiaris) . . 379 



70 Second thoracic and second lumbar vertebrae of a Dog (Canis 



familiaris) 382 



71 Diagram of the relations of the principal bones in the Mamma- 



lian skull 385 



72 Vertical longitudinal section through skull of a Dog (Canis 



familiaris) 387 



73 Dorsal view of the cranium of a Dog (Canis familiaris) . . 389 



74 Diagram of the mammalian tympanic cavity and associated 



bones 391 



75 Ventral view of the cranium of a Dog (Canis familiaris) . . 396 



76 Sternum and sternal ribs of a Dog (Canis familiaris) . . 403 



77 Bones of the left upper arm and fore-arm of a Dog (Canis 



familiaris) 407 



78 Bight innominate bone, A, of a full-grown Terrier ; B, of a 



Collie Puppy 410 



79 Left leg bones of a Dog (Canis familiaris) . . . .411 



80 A, Eight manus; B, Eight pes of a Dog (Cam's famili- 



aris) 413 



81 Skull of a young Indian Ehinoceros (R. unicornis) showing the 



change of the dentition 421 



82 Palatal aspect of the cranium and mandible of a Donkey (Equus 



asinus) 431 



83 Skull of Procavia (Dendrohyrax) dorsalis .... 433 



84 Carnassial or sectorial teeth of Carnivora . . . . 436 



85 Mandible of Isabelline Bear (Ursus isabellinus) . . . 438 



86 Left mandibular ramus of the Sea Leopard (Ogmorhinus 



leptonyx) 439 



87 Cervical vertebrae of a young Fin Whale (Balaenoptera 



musculus) 444 



88 Atlas and axis vertebrae of an Ox (Bos taurm) . . . 445 



89 First and second thoracic vertebrae of an Ox (Bos taunts) . 449 



90 Skulls of Tasmanian Wolf (Thylacinus cynocephalus) and 



Hairy-nosed Wombat (Phascolomys latifrons) . . . 456 



91 Skull of Two-fingered Sloth (Choloepus didactylus) . . 458 



92 Skull of Rhytina stelleri 460 



