1592 



SUBJECT INDEX 



Scyliorhinus (c.ont.) 



genital tract development (cont.) 

 progesterone and, 1067 

 testosterone and, 1065 

 hermaphroditism, 1063 

 interrenal body, origin, 1070 

 Miillerian duct of male, estrogen and, 1070 

 sex reversal, gonadal hormones and, 1070 

 Scylliorhinus canicula, transport of ova, 1049 

 Scyllium, intromittent organ, 1041 

 Seahorse 



genital tract, development, 1060 

 transport of developing eggs by males, 1047 

 Seal (see also Callorhinus, Phocidae) 

 ovary, age and responsiveness to gonadotro- 

 pins, 477-478 

 Seasonal breeding 



Anas, interruption hv hypothalamic lesions, 



1135 

 birds 



inherent cycles, 1141, 1144 

 nesting materials and, 1142 

 sexual behavior of male and, 1145 

 termination of, 1144 

 duck 



interruption of hvpothalamico hvpophvseal 



tract and, 1136 

 prevention of l)V i)ortal vessel interruption, 

 1136 

 environmental stimuli, 27(>-278 

 algae, 276 

 food, 276, 1142 

 light, 276 

 rainfall, 276 

 temperature, 276 

 fowl 



fluctuations 



in adrenal weight, 1145 

 in hypophyseal cytology, 1145 

 in ovarian weight, 1145 

 neurosecretory changes, 1145 

 frogs, environmental stimuli, ionic concentra- 

 tion of water, 276 

 hypophyseal cytology, 202 

 pigeon, prolactin termination of, 1144 

 synchronization of male and female, 1144-1145 

 Sea urchin, sperm 

 flagellation, 765 

 flagellum, 769 



irradiation and fertilizing capacity, 771 

 metabolism, 758 

 penetration of ovum, 834 

 power output, 766 

 size, 751 

 velocity, 766 

 Secondary sex characters 



amphibia, androgen and, 1038 

 man, changes with age, 334 

 Nycticorax, gonadal hormones and, 1275 

 Seiurus aurocapilus, nest -building 

 role of sexes, 1270 



temporal relation to egg-laying, 1273 

 Selachians, ovary, corpus luteum, 1069 

 Semen 

 bull 



constituents, 1110 

 inorganic ion content, 720 

 coagulation, 396 397 

 constituents, 380-394 

 acid phosphatase, 390 



in crypt orchid men, 315 

 alkaline phosphatase, 391 

 amino acids, 389-390 

 amino sugars, 385 



Semen (cont.) 

 constituents (cont.) 



ascorbic acid, 385 



catecholamines, 389 



choline derivatives, 386-387 



choline esterase, 392 



citric acid, 388-389 

 functional significance, 393 



electrolytes, 380, 780 



ergothioneine, 385 



functional significance, 392 



fructose, 381-385, 393 



glutathione reductase, 392 



glycerophosphorylcholine, 393 



inorganic pyrophosphatase, 391 



inositol, 385 



isocitric dehydrogenase, 392 



lactic dehydrogenase, 392 



lipids, 387 



5 '-nucleotidase, 391 



nucleotide pyrophosphatases, 391 



phosphohexoisomerase, 392 



polyamines, 386 



protein, 390 



proteolytic enzymes, 391-392 



serotonin, 389 



sorbitol, 384-385 



spermine, 393 



urea, 390 



uric acid, 390 



zinc, 380-381 

 fowl 



constituents, 1 110 



glutamate content, 1110 

 li(lu(>fuction, 397 

 medicolegal test for, 386 

 Seminal fructose 



androgen and, 383, 659 

 biosynthesis, 382-383 

 energy source for sperm, 384 

 functional significance, 393 

 inanition and, 384 

 level 



fretiuency of ejaculation and, 383 



regulatory factors, 383-384 



vitamin B deficiency and, 384 

 test, for androgen activity, 383-384 

 Seminal plasma 



and fertilizing capacity of sperm, 772 

 functions, 722 

 in birds, 376, 377 

 in mammals, 376 

 in man, 377 

 in reptiles, 376 

 methods of collection, 725 

 origin in fowl, 711 

 Seminal vesicles, 370, 371, 376 

 acid phosphatase in, 391 



androgen and, 409-410 

 Acris, androgen and, 1046 

 adenosine deaminase in, 392 

 adrenal androgens and, 423-424 

 alkaline phosphatase in, 391 

 androgen and, 409-410, 414-417, 422 

 castrational involution, rate, 416 

 cj^tology 



electron microscopy, 414-418, 420 



histochemical, 409, 414-415, 421, 422 



light microscopy, 408-410, 414 

 embryonic origin, 366-367 

 estrogen and, 426-429 

 estrogen-androgen effects, 426 

 female, androgen and development of, 120 

 fish, androgens and, 1039 



