852 



Subject Index 



Precoracoid, 107, 130, 131, 132 



Prefrontal, 125 



Preganglionic fibers, 171, 178, 184, 219 



neurons, 182 

 Pregnancy, extrauterine, 646 

 Prehensile tail, 595 

 Premaxilla, 126, 127 

 Premolars, 43, 45, 563 

 Preopercular, 126 

 Prepuce, 660 

 Preputial glands, 665 

 Presphenoid, 124 

 Pressure (sense), 193 



adaptations to, 569 

 Pretrematic nerve, 160, 161, 166, 167, 169 

 Prevomers, 125, 137 

 Prezvgapophvsis(es), 108, 742 

 Primates, 294, 571, 709, 765, 767-771 



evolution of, 793, 794 



generalized structure of, 803, 806 



relationships of, 784, 793 



specialization of, 806-809 

 Primitive (renal), duct, 81, 83, 275, 277 



groove, 263, 266 



streak, 263, 265, 266, 273 

 Principle (see also Theory, Law) 



of connections, 360, 374, 375, 37S 

 Priodontes, 743 

 Prisms, enamel, 36, 38, 40 

 Proboscidea, 757, 759-761, 779, 7S1 

 Proboscis, 394, 679, 761 



monkey, 771 

 Procavia, 762 

 Procellariiformes, 545, 556 

 Process (es), ciliary, 203, 683 



coracoid, 583 



coronoid, 601 



iliac, 129 



odontoid, 111, 593 



pterygoid, 122 



scapular, 129 



spinous, 109 



styloid, 122, 607 



transverse, 108 



uncinate, 518 



vermiform, 14 



zygomatic, 601 

 Procoelous centrum, 106 

 Procoracoid (see Precoracoid) 

 Proctodeum, 274, 275, 530 

 Procyon, 747, 748 

 Procyonidae, 747, 748 

 Proechidna, 733 

 Progesterone, 216, 217 

 Projection-tracts, 717 

 Pronators, 96 

 Pronephric duct, 87, 279, 280 



tubules, 81, 277, 280 

 Pronephros, 60, 79, 80, 81, 83, 84, 87, 279, 



473 

 Prongbuck, 757 

 Prootic, 125 



Proprioceptors, 140, 211-213 

 Propterygium, 129 

 Prosencephalon (see Telencephalon) 



Prostate gland, 185, 663, 664, 665 



Prostatic vesicle, 663 



Protection, provisions for, 238, 239, 246 



Proterostomians, 391 



Proteus, 452 



Protochordata, 389-411 



Protonephridia, 80 



Protoplasm, 248, 249, 257, 289, 299, 301, 



320 

 Protoplasmic bridges, 305 

 Protopterus, 19, 437 



Protostomians (proterostomians), 391, 392 

 Prototheria, 729 

 Protozoa, 390 

 Protractors, 96 

 Proventriculus, 528 

 Proximal, 13 

 Psittaciformes, 551 

 Pteranodon, 568 

 Pterodactyls, 490, 500 

 Pteropus, 739 



Pterosaur(s), 490, 497, 498, 500, 553, 568 

 Pterygoid (s), 126 



process, 122 

 Pterylae, 508 

 Pterylosis, 508 

 Ptyalin, 637 

 Pubertv, 216 

 Pubis, 107, 130, 131, 514 

 Puffins, 546 

 Pulmonary arteries, 68, 64, 69, 71 



epithelium, 59 



trunk, 625 



veins, 64, 69, 71 

 Pulp, 37, 39, 42, 56 

 Pulp-cavity, 35, 37 



nerves in, 37, 38 

 Pupil, 201, 682 

 Putorius erminea, 796 



vison, 748 

 Pygostyle, 516 

 Pyloric stomach, 29, 638 

 Pylorus, 25 

 Pyramidal cell, 140, 317 



tract, 171 

 Pyramids, 151 



of kidney, 86 

 Python, 489 



Quadrate, 126, 127, 128, 478, 517, 563, 695 



Quadratojugal, 126 



Quadratus labii muscles, 98 



Quails, 546 



Quill (calamus), 505, 506 



Rabbit, 198, 264, 265, 266, 703, 706, 740 



Raccoon, 747 



Rachis, 505, 509 



Radialia, 129 



Radiation, adaptive, 366, 367, 368-370 



repetitive, 798-800, 801, 802 

 Radius, 95, 107, 131, 133 



