XIV LIST OF ILLUSTRATIONS. 



43 Palatal aspect of the cranium and mandible of an Alligator 



(Caiman Jatirostris) 245 



44 Lateral view of the skull of an Alligator (Caiman latirostris) . 248 



45 Longitudinal section through the skull of an Alligator (Caiman 



latirostris) 253 



46 Sternum and associated membrane bones of a Crocodile 



(Crocodilus palustris) 261 



47 Left half of the pectoral girdle of an Alligator (Caiman 



latirostris) 262 



48 Right anterior and posterior limbs of an Alligator (Caiman 



latirostris) 264 



49 Pelvis and sacrum of an Alligator (Caiman latirostris) . 267 



50 Preparation of part of the right mandibular ramus of Croco- 



dilus palustris 274 



51 Dorsal and ventral views of the skull of a Common Snake 



(Tropidonotus natrix) 279 



52 Skull of Hatteria (Sphenodon punctatus) .... 282 



53 Hyoids of an Alligator (Caiman latirostris), and of a Green 



Turtle (Chelone midas) 285 



54 Ventral view of the shoulder-girdle and sternum of Loemanctus 



longipes 287 



55 Left half of the skeleton of a Common Fowl (Gallus bankiva) 301 



56 The wing of a Wild Duck (Anas boschas) .... 304 



57 Wings of a Wild Duck with the coverts removed (Anas 



bosc.has) . 305 



58 Dorsal and ventral views of the pelvis and sacrum of a Duck 



(Anas boschas) 311 



59 Skull of a Duck (Anas boschas) 312 



60 A, Ventral view of the cranium of a Duck (Anas boschas) ; B, 



Cranium and mandible seen from the left side , . 313 



61 Lateral view of the pelvis and sacrum of a Duck (Anas boschas) 325 



62 Third cervical vertebra of an Ostrich (Struthio camelus) . 331 



63 Shoulder-girdle and sternum of A, Black Vulture (Vultur 



cinereus) ; B, Peacock (Pavo cristatus) ; C, Pelican (Pelica- 



nus conspicillatus) 337 



64 Bones of the right wing of A, a Penguin; B, an Ostrich 



(Struthio camelus) and C, a Gannet (Sula alba) . . . 339 



65 Pelvic girdle and sacrum of A, Cassowary (Casuarius galeatus); 



B, Owen's Apteryx (A. oweni)-, C, Broad-billed Rhea (R. 

 macrorhyncha) ; D, Ostrich (Struthio camelus) . . . 340 



