1568 



SUBJECT INDEX 



Miillerian ducts (cont.) 

 development {cont.) 

 in vitro, 117 

 mammals 



androsPii and, 114 

 estiofri-ns and, 112^113 

 opossum, androgen and, 146 

 rabbit, inhibition, testosterone compared 



with fetal testis, 114 

 rat, male, critical period, 118 

 Scyliorhinus, estradiol and, 1070 

 Ernys, stimulation by gonadal hormones, 1070 

 fowl, male, process of involution, 119 

 Sceloporus 



estrone and, 1008 

 male, androgen and, 1047 

 testosterone and, 1068 

 toads, male, seasonal differences in responsive- 

 ness to estrone, 1054 

 Murenid fishes, ovary, 1049 

 Muridae (see Mouse, Rat) 

 Muscles in males, res])()nse to androgen, 1186 

 iMns /////.st///,/,s- (see Mouse) 



Mush 1(1 fniHila, fertilization, cytology of, 827 

 Mustela J'liro (see Ferret) 

 Mustela nmsleta 



delayed implantation, 851 

 fate of nonfertilizing sperm, 744 

 pregnancy, length, 961 

 seasonal breeder, 315-316 

 Mu.shln niralis 

 liner size, '.Kil 

 l)regnancy, length, 961 

 M ustcla putorius 



development of eliminative behavior, parental 



care and, 1358 

 parental behavior, retrieving, 1315 

 Mustela vison (see Mink) 

 Mustelidae 



corpus luteum functioning, light and, 534 

 oviduct-ovarian relationship, 819 

 pseudopregnancy, 533 

 Mustelus canis 



corpus luteum, absence of progesterone, 1058 

 ovary, estrogen content, 1050 

 viviparity, 1057 

 Mutants, tabulations of, 4 

 Myliobatis 



corpus luteum, 1058 

 viviparity, 1057 

 Myometrium (see also Uterus) 

 epinephrine-reversal effect, 534 

 estrogen and, 562, 565 



estrogen-progesterone and, 570-571, 1013-1015 

 pregnancjr and, 1013-1014 

 relaxin and, 1014-1015 

 Myotis (see Bat) 

 Myxine 



corpus luteum, 1058 

 hermaphroditism, 1063, 1064 

 testis, age of animal and, 1036 



Natrix (see also Tropidonotus) 

 blood 



calcium levels, 1052 



magnesium levels, 1052 



protein levels, 1052 

 corpus luteum, 1059 



evidence of gonadotrophin secretion, 1045 

 gestagens, in blood, 1059 

 ovoviviparity, 1056 



pregnancy, hypophysectomy and, 1059 

 ovariectomy and, 1059 

 testis, interstitial cells, 1039 



Natrix natrix, sperm storage in female, 1055 

 Natrix subminiata, sperm storage in female, 1055 

 Natrix tigrina 

 oviduct 



ovariectomy and, 1053 

 seasonal changes, 1052 

 Natrix vittata, sperm storage in female, 1055 

 Nectophrynoifles, corpus luteum, 1058 

 Nectophniiioidi's occidentalis 

 breeding hal)its, 1058 

 unknown fertilization mechanism, 1042 

 viviparity, 1058 



structural adaptations, 1058 

 Nectophrynoides vivipara 

 viviparity, 1058 



structural adaptations, 1058 

 Nee turns mac ulosus 



hypophyseal cytology, seasonal changes, 202 

 spermatogenesis, seasonal occurrence, 1037 

 Neotoca (see also Goodeidae) 

 intraovarian fertilization, 1054 

 ovary, type, 1049 

 Neotoca hilineata, corpus luteum, 1058 

 Neotoma albigula, development of eliminative 



behavior, parental care and, 1358 

 Neotoma fuscipes, nest-building pattern, 1305 

 Nereis, sperm, metabolism, 758 

 Nest-building 



Alectura, role of sexes, 1275 

 Apus, role of sexes, 1276 

 birds 



androgen and, 1275 



bower, display by male and, 1280 



courtship by male and, 1275-1276 



during incubation, 1272 



estrogens and, 1274-1275 



experience and, 1234 



nesting sites and, 1276 



ovarian follicular hormones and, 1278 



posturing by males and, 1276 



progesterone and, 1353 



rainfall and, 1142, 1276 



role of sexes, 1270-1271 



temporal relation 



to copulation, 1271-1272 

 to egg-laying, 1273-1274 

 to follicular growth, 1273-1274 

 vocalization by male and, 1276 

 canary, sex dimorphism, 1351 

 Larus, displacement type, 1272, 1351 

 male Gasterosteus, temporal relation to meso- 



nephric modification, 1040 

 male, correlation with testicular activity, 1274 

 mammals 



comparison with retrieving, 1317-1318 

 hormonal basis, 1305-1309 

 parturition and, 1306 

 patterns, 1305 

 mouse 



and heat regulation, 1346 

 estrogen and, 1308 



nonpregnant, gonadal hormones and, 1308 

 pregnancy and, 1308 

 presence of young and, 1309-1310 

 progesterone and, 1308, 1347 

 Muridae, temporal relation to parturition, 



mouse compared with rat, 1347, 1353 

 patterns 



swallows, 1352 

 swifts, 1352 

 rabbit 



experience and, 1333 

 strain differences, 1354 

 genetic basis, 1354 



