SUBJECT INDEX 



1591 



Rudimentary right gonad development 

 inhibition 



by adrenalectomy, 1113 

 by estrogen, 1113 

 by hypophysectomy, 1113 

 by inanition, 1104, 1113 

 by prolactin, 1113 

 sinistral ovariectomy and, 1112-1114 

 Rumex 



chromosomes, sex values, 41 

 sex determination, 40-42 

 Kuniex aretosa 

 chromosomes 

 and sex, 40-41 

 patterns, 40-41 

 Rinnex aiujiocarpus, chromosomes and sex deter- 

 mination, 41 

 Riwiex graminifolius, chromosomes and sex deter- 

 mination, 41 

 Rumex paucifolius, chromosomes and sex deter- 

 mination, 41 

 Rumex tenuifolhis, chromosomes and sex deter- 

 mination, 41 

 Running activity 

 methods of measuring, 1187 

 rat 



age of animal and, 1203-1204 

 androgens and in male, 1186 

 estrogens and, 1191 



in male, 1186 

 hypophysis and, 1210, 1346 

 in male, 1179 

 thyroid and, 1346 

 wild rat, adrenal corticoids and, 1191-1192, 1210 

 Rupicapra rupicapra, social behavior, reproduc- 

 tive state and, 1250 

 Ruptured follicle hormone, in fowl, 1121 



Sable 



copulation, 723 



delayed implantation, 851 

 Salamander 



embryonic testis 

 bisexuality of, 84 

 structure, 84 



fertilization, spermatophores and, 1055 



sex differentiation, inductor substances com- 

 pared with sexogens, 80, 148-149 



sex reversal, estrogen and, 45 

 Salamandra 



breeding, seasonal occurrence, 1036 



corpus luteum, 1058 



ovoviviparity, 1056 

 Salamandra salamandra, si:)erm storage in female, 



1055 

 Sdhimaiidrina, corpus luteum, 1058 

 Sahiio, hermaphroditism, 1063 

 S<ilm(i irideus 



ovum age at fertilization, and sex ratio, 848 



responsiveness to gonadotrophins, in cross- 

 species tests, 252 

 Salmo salar 



mating behavior in males, castration and, 1180 



paedogenesis, 1036 



spermatogenesis, seasonal occurrence, 1036 

 Salmon, mating behavior of males, androgen and, 



1184 

 Salmonidae 



ovary, type, 1049 



oviduct, absence of, 1051 

 Sarcophilus ursinus 



litter size, 961 



pregnancy, length, 961 

 Sardina, hermaphroditism, 1063 



Sargus, hermaphroditism, 1063, 1064 

 Saxostrea, sperm, metabolism, 758 

 Scalopus aquaticus (see also Mole) 

 litter size, 960 

 pelvic relaxation, 1008 

 pregnancy, length, 960 

 Sceloporus 

 epididymis, androgen and, 1047 

 femoral glands, androgen and, 1047 

 genital tract in adults, gonadal hormones and, 



1054, 1068 

 hemipenes, androgen and, 1047 

 mesonephros in females, androgen and, 1047 

 Miillerian duct in males, androgen and, 1047 

 ovarian follicular growth, season of, 1050 

 oviduct 



androgen and, 1047 

 estrone and, 1054 

 pro-ovarian cilia, 1052 

 pseudohermaphroditism, 1066 

 Wolffian duct in females, androgen and, 1047 

 Sceloporus grammicus, dominance, androgen and, 



1254 

 Sceloporus spinosus, cloaca, regional differentia- 

 tion, 1043 

 Sciara 



bisexuality compared with unisexuality, 30 

 chromosomes 

 in mosaics, 17 

 "limited," 30 

 lineage and sex, 29 

 sex chromosome extrusion, 31 

 sex determination, 28-32 

 sex dov('l()])mont 



cyto])lasmic agents and, 30 

 sex chromosome elimination and, 30 

 sex ratio 



female, chromosome pattern, 29 

 male, chromosome pattern, 29 

 sexuality, time of establishment, 32 

 spermatogenesis, 29 

 Sciara ocellaris 

 chromosomes, 29 



hybrid with S. reynoldsi, chromosome pattern, 

 31 

 Sciara reynoldsi 

 chromosomes, 29 



hybrid with S. ocellaris, chromosome pattern, 

 31 

 Sciencus, testis, interstitial cells, 1039 

 Sciuridae 



bulbar gland, 373 

 bulbo-urethral glands, type, 368 

 Sciurus griseus, breeding season, 502 

 Sciurus hudsonicus 

 litter size, 961 



nest-building pattern, 1305 

 pregnancy, length, 961 

 Sciin-iif< nigcr 



seasonal l)reeder, 317 

 testis, seasonal changes, 317 

 Sc(il()i)aci(la(', ))recocial young, 1298 

 Siohipa.r ruslicuhi, sperm, 1096 

 Scomber, herniajjhroditism, 1063 

 Scorpaena, ovary, type, 1049 

 Scrotum 



sweat glands, 320 

 temperature gradient, 311, 138-319 

 thermoregulatory function, 311-313, 320 

 Scyliorhinus 



embryonic goruid, bisexuality, 1070 

 genital tract development 

 DOCA and, 1067 

 estradiol and, 1067 



