492 



GENERAL ZOOLOGY 



Potato beetle, egg of, 227 



Praying mantis, 429 



Precava, 126 



Precipitin tests, 300 



Prehallux, 70 



Prehistoric Man, 308 



Premaxillary, 58 



Premolar teeth, 91 



Pressure, 355 



Primates, 455 



Pristis, 448 



Proboscidea, 456 



Proctociliata, 381 



Progestin, 217 



Proglottid, 349, 405 



Prootic, 56 



Proprioceptors, 188 



Prorennin, 107 



Prostoma, 405 



Prostomium, 415 



Protective coloration, 333, 334 



Protein, 7 



Proteolytic enzymes, 106 



Proteomyxa, 374 



Proteus, 326, 450 



Protohippus, 305 



Protonephridia, 144 



Protoparce, 431 



Protoplasm, 2, 5, 7 



doctrine, 5 

 Protopterus, 449 

 Protorohippus, 304 

 Prototheria, 454 

 Protozoa, 367 

 Proventriculus, 98 

 Provitamin, 111 

 Psalterium, 98 

 Pseudoconjugation, 376 

 Pseudopodia, 368 

 Ptarmigan, 334 

 Pterygoid, 57, 58 

 Ptyalin, 94, 106, 112 

 Pulex, 432 



Pulmocutaneous artery, 124 

 Pulmonary aorta, 132 

 Pupil, 194 

 Pure line, 321, 322 

 Putrefaction, 119 



Pygostyle, 62 

 Pyloric glands, 98 

 Pyloric valve, 100 

 Pylorus, 32 

 Pyriformis muscle, 81 



Q 



Quadratojugal, 58 

 Qualitative division, 230 

 Quantitative division, 230 



R 



Rabbit, 33, 338 



Race preservation, 355 



Radiale, 69 



Radiolaria, 375 



Radioulna, 69 



Radius, 70 



Rata, 101 



Raji, 447 



Rami communicantes, 181 



Rana, 450 



(See also Frog) 

 Rattlesnake, 330, 332 

 Ray, 447 



Receptors, 165, 187-189, 198 

 Rectum, 102 



Rectus abdominis muscle, 76 

 Rectus femoris anticus muscle, 81 

 Rectus internus major muscle, 80 

 Rectus internus minor muscle, 80 

 Red corpuscles, 137 

 Redia, 402 



Reflex action, 183, 184 

 Regeneration, 349, 350 

 Reissner's membrane, 202 

 Remora, 345, 346 

 Renal artery, 130 

 Renal portal vein, 130 

 Renal vein, 130 

 Rennin, 107 

 Reproduction, 163 



agamic, 154 



dioecious, 153 



earthworm, 157 



frog, 38, 159 



