INDEX 



487 



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



Parietal organ, 155, 171 



Parorchis, 346, 350 



Parovarium, 375 



Pars acetabularis, 119, 120 



Patella, 132 



Pecten, 213 



Pectoral arch, 106 



Pelvic arch, 109 



Pelvic plate, 109, 111 



Penis, 377, 379-384 



Pericardium, 300 



Perilymph, 222 



Perinseum, 375 



Perissodactyle feet, 134 



Peritoneal funnels, 235 



Peritoneum, 235 



Pes, 126134 



Phalanges, 126134 



Pharyngeal teeth of Teleosts, 81 



Pharynx, 236, 273 



Phosphorescent organs, 18 



Physoclisti, 280 



Physostomi, 280 



Pia mater, 151 



Pigment of skin, 18, 19, 20, 26 



Pineal organ, 155, 159 



Pinna of ear, 233 



Pisiform bone, 128, 133 



Pituitary body, 155 



Pituitary space, 67 



Placenta, allantoic, 9, 337340 



Placenta, umbilical, 336338 



Placoid organs, 30 



Plastron, 34 



Pleura, 297 



Pleurocentra, 41, 44, 45 



Pleurodont dentition, 243 



Pleuronectidae, asymmetry of head, 81 



Plica semilunaris, 217 



Pneumatic bones, 93, 99, 130, 295 



Poison fangs, 243 



Polar cells, 3 



Polymastism and Polythelism, 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, 51 



Pronephric duct, 311 



Pronephros, 341 



Pronucleus, male and female, 3 



Propterygium, 122125 



Prostate, 377 



Protocercal tail, 41 



Protovertebrse, 8, 66 



Proventriculus, 262 

 Pseudobranch, 278 

 Pterygiophores, 103, 105, 122125 

 Ptervgopodium, 378 

 Pteryla, 21 

 Pubis, 114120 

 Pupil, 210 

 Pygostyle, 48 

 Pyloric ceeca, 259 



Q. 



Quadrate cartilage, 69 



B. 



Radiale, 126133 



Radii of fins, 102, 105, 122125 



Radius, 126133 



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, 5261 



Ribs, abdominal, 56, 57, 58 



Ribs, cranial, of Dipnoi, 82 f* 



Rudimentary limbs, 109, 121, 127, 129, 



134 

 Ruminant stomach, 265 



S, 



Sacculus, 221 



Sauropsida, 14 



Scala vestibuli, tympani, and media, 232 



Scales, 18, 20, 26, 30 



Scapula, 107109 



Schizocrele, 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, 190196 

 Sensory organs, 189 234 

 Septum, oblique, 292 

 Sesamoids, 136 

 Sheaths of notochord, 34 

 Skeletogenous layer of vertebral column, 



36 



Skin, 16 

 Skull, 64102 



bones of, 71, 76 102 

 Somatopleure, 8 

 Spermatozoa, 3, 348 



