INDEX 



443 



Ossicula auditus, 80 



Ossein, 27, 43 



Osseous tissue, 27 



Osteoblasts, 43 



Ostium tubae abdominale, 351 



Ostracoderms, 7 



Otic bones, 75 

 capsule, 67 

 ganglion, 178, 187 



Otoliths, 200 



Ovarial cords, 347 



Ovarian artery, 307 



Ovary, 335, 347 



Oviduct, 343, 351 



Ovotestis, 354 



Ovum, 9 



Pacini's corpuscle, 194 

 Paired appendages, 112 

 Palaeospondylus, 7 

 Palatal glands, 236 

 Palatine bone, 77 



nerve, 188 

 Palatoquadrate, 71 

 Pallial commissure, 159 

 Pallium, 148, 160 

 Pancreas, 250 

 Panniculus carnosus, 139 

 Parabronchi, 279 

 Parachordal plates, 68 

 Para flocculus, 173 

 Paraglossa, 106, 233 

 Paramastoid process, 108 

 Parapinealis, 163 

 Parapophysis, 49 

 Parasphenoid bone, 77 

 Paraterminal body, 159 

 Parathyreoids, 264 

 Parietal bones, 76 



foramen, 76, 156 



lobe, 159 



muscles, 131 



organ, 149 

 Paroccipital, 108 

 Parotid gland, 33, 237 

 Parovarial canal, 353 

 Parovarium, 376 

 Patella, 127, 129 

 Paunch, 242 

 Pearl organs, 31 



Pecten of eye, 219 

 Pectineal process, 122 

 Pectineus muscle, 137 

 Pectoral girdle, 114 

 Pectoralis muscle, 137 

 Peduncles of cerebellum, 153 



of cerebrum, 152 

 Pelvic ganglion, 177 



girdle, 118 

 Pelvis, 118 



of kidney, 370 

 Penis, 367, 378 



bone, 378 

 Pepsin, 240 

 Pericardial cavity, 293 



sac, 290 

 Pericardio-peritoneal canals, 18, 295 

 Pericardium, 18, 19, 292 

 Perichondrium, 27, 42 

 Periderm, 29 

 Peridural space, 163 

 Perilymph, 200 



duct, 201 

 Pcrimeningeal space, 163 

 Perimysium, 26, 134 

 Perineum, 377 

 Perineureum, 25 

 Periosteum, 28, 43 

 Peripheral nervous system, 1 73 

 Peristalsis, 130, 222, 243 

 Peritoneal canals, 20 



cavity, 18 

 Peritoneum, 19 

 Peroneal artery, 306 

 Pes, 125 



Petromyzontes, 4 

 Petrosal bones, 75, 109 



ganglion, 189 

 Peyer's patches, 333 

 PhaK)chrome cells, 355 

 Phalanges, 125 

 Pharyngeal derivatives, 262 



nerve, 190, 191 



plate, 220 



tonsils, 266 

 Pharyngobranchial, 72 

 Pharynx, 238, 252 

 Phosphorescent organs, 31 

 Pbotophores, 31 

 Phrenic nerve, 140 

 Phyllospondylous, 54 

 Pia mater, 163 



