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Show XX Page 242 Lateral view of the skull of Canis azarce Lateral view of the skull of Canis vulpes -f** Crowns of the cheek-teeth of Canis azarce and C. vulpes 243 Longitudinal sections of the skulls of Canis azarce and C. vulpes .. 246 Superimposed outlines of the casts of the cranial cavities of Canis azarce and C. vulpes &4I Crowns of the cheek-teeth of Canis argentatus and C. littoralis. . . . 249 Upper and lower cheek-teeth of Canis lupus and C. azarce 250 Dorsal aspect of the right half of the skull of Canis azarce 251 Dorsal aspect of the left half of the skull of Canis littoralis 251 The left ramus of the mandible of Canis azarce, C. littoralis, and C. fulripes 252 Dorsal view of the skull of Canis fulripes 254 Dorsal view of the skull of Olocyon lalandii 257 Lateral view of the skull of Otocyon lalandii 258 Lower and upper cheek-teeth of Otocyon lalandii 260 Lower sectorial tooth of Otocyon lalandii, Canis zerda, and C. lupus 260 Right ramus of the mandible of Perameles, Procyon, and Otocyon 263 Side view of the skull of Icticyon venations 268 Upper and lower cheek-teeth of Icticyon venations 269 The Koala 355 Left foot of Cymbirhynchus macrorhynchus 382 Syrinx of Eurylcemus ochromelas 384 Syrinx of Cymbirhynchus 385 Palate of Philepitta castanea 388 Syrinx of Philepitta 389 Apus dukianus 392 Skull of Bassaricyon alleni 393 Upper jaw of Bassaricyon alleni 398 Lower jaw of Bassaricyon alleni 399 First upper tooth of Ursusjaponicus and U. americanus 442 Head of Natalus micropus 444 Head of Lemur macaco 451 Head of Lemur nigerrimus 451 Bones of fore limb of Antechinomys and Antechinus 457 Bones of hind limb of Antechinomys and Antechinus 457 Stomachs of Antechinomys and Antechinus 458 Liver of Antechinomys \ 439 Right foot of Leptosoma 4(5(5 Wing-muscles of Leptosoma 479 Deep plantar tendons in Leptosoma 472 Syrinx of Leptosoma 470 Head of Prongbuck, showing the new pair of horns the day after the shedding of the old ones " 54^ Horn of Prongbuck, drawn the day after the shedding of the old h o r n 9 * * • 541 Horn of Prongbuck, one month after the shedding of the old horns 542 |