574 



INDEX 



Pneumatic bones, 386 



Poison-fangs, 317 



Poison-organs of Fishes, 19 



Polar cells, 3 



Pollex, 169 



Polymastism and polythelism, 37 



Polyphyodont, 314 



Pons Varolii, 203, 229 



Postcentra, 50 



Precentra, 50 



Prehallux, 162, 170 



Prelacteal dentition, 319 



Prepollex, 170 



Prepubic process, 146 



Prepuce, 491 



Primitive meninx, 195 

 streak, 6 



Pro-amnion, 437 



Pro-atlas, 57, 62 



Processus digitiformis, 336 

 falciformis, 279 

 vermiformis, 344 

 Procoelous vertebrae, 56 

 Procoracoid, 71, 141 

 Proctodaeum, 6, 308 

 Promontory, of sacrum, 62 

 Pronation, 169 

 Pronephric duct, 443 

 Pronephros, 441, 443 

 Pronucleus, male and female, 3 

 Propterygium, 140, 155 

 Proscapula, 142 

 Prostate, 484 

 Prosternum, 44, 72 

 Protocercal tail, 53 

 Proto vertebrae, 9 

 Proventriculus, 339 

 Psalterium, 341 

 Pseudob ranch, 357 

 Pseudo-electric fishes, 190 



-turbinal, 266 

 Pterygiophores, 136 

 Pterygopodium (see Clasper) 

 Pterylae, 28 

 Pubis, 148 



Puncta lacrymalia, 289 

 Pupil, 275 



Pygal plates of Reptiles, 43 

 Pygostyle, 60 

 Pylangium, 395 

 Pylori c caeca, 336 

 valve, 311 



Quadrate cartilage, 81 



R 



Rachis, 27 



Radiale, 161 



Radii of fins, 155-159 



Radius, 160 



Rami communicantes, 247 



Receptacula seminis, 474 



Receptaculum chyli, 433 



Rectrices, 27 



Rectum, 311, 336 



Remiges, 27 



Reissner's fibres, 199 



Reproduction of tail in Lizards, 58 



Respiratory organs, 351 



Rete testis, 445 



Retia mirabilia, 361, 406, 431 



Reticulum, 341 



Retina, 273, 284 



Ribs, 12, 63 



abdominal, 42, 43, 67, 70 



caudal, of Hatteria, 67 



cranial, of Dipnoi, 95 



false and true, 67 

 Rolando, fissure of, 228 

 Rostrum, 88 

 Rumen, 341 

 Ruminant stomach, 341 



S 



Sacculi alveolares, 388 



Sacculus, 290 



Saccus vasculosus, 203, 210 



Sacrum, 56, 60, 62 



Sauropsida, 14 



Savi's vesicles, of Torpedo, 253 



Scala media, 304 



tympani, 299 



vestibuli, 98, 299 

 Scales, 18, 20, 22, 23, 25, 31, 39 

 Scapula, 71, 141 

 Scapus, 27 

 Schizocrele, 8 

 Sclerotic, 276 



plates, 282 

 Scrotal sacs, 482 

 Secodont teeth, 321 

 Segmental duct, 443 

 Segmentation cavity, 4 



nucleus, 3 



of head, 75, 237 



of oosperm, 4 

 Selenodont teeth, 321 

 Semicircular canals, 290 

 Sense-capsules, 76 



Sense-organs of integument, 25, 250-258 

 Sensory organs, 249-307 

 Septum atriorum, 401, 403 



lucidum, 204 



oblique, 384 



transversum, 185 



ventricular, 408 

 Serosa, 437 



Sesamoids, 170, 172, 175 

 Sexual reproduction, 3 

 Shell-gland, 463 



