INDEX 



487 



Parietal foramen, 85, 91, 162, 166, 171 



Parietal organ, 155, 171 



Parorchis, 346, 350 



Parovarium, 375 



Pars acetabularis, 119, \20 



Patella, 132 



Pecten, 213 



Pectoral arch, 106 



Pelvic arch, 109 



Pelvic plate, 109, 111 



Penis, 377, 379—384 



Pericardimn, 300 



Perilymph, 222 



PerinsBum, 375 



Perissodactyle feet, 134 



Peritoneal fuimels, 235 



Peritoneum, 235 



Pes, 126—134 



Phalanges, 126—134 



Pharyngeal teeth of Teleosts, 81 



Pharynx, 236, 273 



Phosphorescent organs, 18 



Physoclisti, 280 



Physostomi, 280 



Pia mater, 151 



Pigment of skin, 18, 19, 20, 20 



Pineal organ, 155, 159 



Pinna of ear, 233 



Pisiform bone, 128, 133 



Pituitary body, 155 



Pituitary space, 67 



Placenta, allantoic, 9, 337 — 340 



Placenta, umbilical, 336 — 338 



Placoid organs, 30 



Plastron, 34 



Pleura, 297 



Pleurocentra, 41, 44, 45 



Pleurodont dentition, 243 



PleuronectidaB, asymmetry of head, 81 



Plica semilunaris, 217 



Pneumatic bones, 93, 99, 130, 295 



Poison fangs, 243 



Polar cells, 3 



Polymastism and Polythelisni, 29 



Polyphyodont, 241 



Prehallux, 127, 128, 133 



Prepollex, 128, 133 



Prepubic process, 117 



Prepuce, 382 



Primitive steak, 6 



Pro-amnion, 357 



Pro-atlas, 46 



Processus falciformis, 211 



Processus vermiformis, 266 



Procoracoid, 107 



Proctodseum, 5, 235 



Promontory of sacrum, 31 



Pronephric duct, 341 



Pronephros, 341 



Pronucleus, male and female, 3 



Propterygium, 122 — 125 



Prostate, 377 



Protocercal tail, 41 



ProtovertebriE, 8, 66 



Proventriculus, 262 

 Pseudobranch, 278 

 Pterygiophores, 103, 105, 122—125 

 Pterygopodiixm, 378 

 Pteryla;, 21 

 Pubis, 114—120 

 Pupil, 210 

 Pygostyle, 48 

 Pyloric cajca, 259 



Quadrate cartilage, 69 



K. 



Radiale, 126—133 



Radii of fins, 102, 105, 122—125 



Radius, 126—133 



Receptaculum chyli, 334 



Rectum, 236 



Reproduction of tail in Lizards, 47 



Respiratory organs, 273 — 298 



Rete testis, 346 



Retia mirabilia, 280, 333 



Retina, 208, 214 



Ribs, 11, 52—61 



Ribs, abdominal, 56, 57, 58 



Ribs, cranial, of Dipnoi, 82 



Rudimentary limbs, 109, 121, 127, 120, 



134 

 Ruminant stomach, 265 



«. 



Sacculus, 221 



Sauropsida, 14 



Scala A'estibuli, tyinpani, and media, 232 



Scales, 18, 2U, 26, 30 



Scapula, 107—109 



Schizoocele, 8 



Sclerotic, 210 



plates, 213 

 Scrotal sacs, 375 

 Segmentation cavity, 4 



nucleus, 3 



of head, 66 



of oosperm, 3, 5 

 Semicircular canals, 221 

 Sense-capsules, 68 



Sense organs of integument, 190 — 196 

 Sensory organs, 189 — 234 

 Septum, oblique, 292 

 Sesamoids, 136 

 Sheaths of notochord, 34 

 Skeletogenoiis layer of vertebral column, 



36 

 Skin, 16 

 Skull, 64—102 



bones of, 71, 76— l(l2 

 Somatopleure, 8 

 Spermatozoa, 3, 348 



