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X cell 6:115
of pituitary 3:143, 150, 153–157, 161–163, 166–174, 176–177, 179–182, 184–188, 191, 193–194
X-irradiation
of gonad anlagen 15:244–245
of hypophysis 15:246
X-radiography 16:355, 360–361, 368
X-ray
analysis 8:593–594, 646
detection of eggs 14:218
diffraction 1:77; 14:527–528, 539, 589
studies (see Radiography)
X-tocopherol 18:203
Xanthine 3:23
Xanthophore 9:408; 18:305–310, 316, 322
Xanthoproteic test (see also Coloration) 18:168
Xanthydrol reaction 6:252, 255–256, 270, 283
Xantusia 5:132–133, 139–140, 142–144, 160, 162–163, 167, 183, 185; 7:170, 179–180, 184, 188, 191, 194, 263, 299–300, 307, 310–312, 316, 489; 8:56, 689; 9:337, 435; 12:68, 119–120, 223, 225, 228, 360, 377, 461, 463, 474; 13:57–58, 125, 136, 177, 179–181, 183–184, 203, 207–209, 216, 237, 301, 311; 14:542, 545, 641, 700, 790, 712; 15:41, 348, 351, 353, 357, 366–367, 389, 391, 532, 543–545, 551, 554, 563–564, 570– 571, 573, 575–578, 583, 585, 587, 645; 16:142, 241, 336, 462, 464–465, 472, 518; 17:184, 193, 208; 18:437; 20:158–159, 161–164, 254–255, 265; 21:76, 89, 143, 229, 275
adrenal 3:265–266, 268, 280, 309–311
axial skeleton 1:246, 269
blood chemistry 3:28
chondrocranium 11:71–73, 77
ear 2:244–245, 267, 271
eye 2:26, 31, 41–43, 84
henshawi 18:257; 20:162, 299, 308
histology of gut 6:255
jaw muscles 4:418
nose 2:120, 130, 132, 139, 143, 160, 178
pancreas 3:320
pituitary 3:162–163, 168
riversiana 18:317; 20:299
thyroid 3:209, 212–216, 218–219, 227
urinogenital system 6:51, 54, 57, 59, 61, 70, 79, 81, 84, 89, 97, 100, 119, 121
vigilis 18:243, 253; 20:159–160, 162–163, 165, 299, 308; 21:7, 123
Xantusiidae 5:144–145, 209, 423; 7:179, 263, 299–300, 318, 489; 8:46, 689; 9:335, 338, 427; 12:99, 119–120, 146, 446, 453, 456, 467, 469, 472; 13:159; 14:712; 15:41, 326, 416, 419, 499, 532, 664, 667, 671; 16:34, 142, 454–455, 465, 518; 19:21; 20:23, 33, 57, 78, 116, 126, 137, 157–161, 163–165, 172–173, 190, 193, 247, 252–259, 261, 264–267, 269, 271, 273–275, 284–285, 308; 21:14, 80, 89, 96, 107, 141–142
adrenal 3:280, 283
axial skeleton 1:241–242, 246, 255, 259–263, 267–270, 301
blood chemistry 3:28, 31
chondrocranium 11:71–73
dentition 1:163
ear 2:240–241, 244–245, 267, 271
eye 2:20, 26, 31, 88
histology of gut 6:229, 296, 298
jaw muscles 4:287, 418, 478
nose 2:120, 132, 139–140, 143
pituitary 3:136, 145–146, 151, 154, 168, 193–194
taxonomic literature 2:320
thyroid 3:205
Xenagama 16:252
Xenelaphis 19:236
ear 2:272
hexagonotus 19:217; 20:645
Xenoboa 21:479, 529
cropani 21:479, 606
pit organs 2:304
Xenocalamus 16:121; 19:122, 149, 221; 20:524, 526, 528–530, 532; 21:483, 544, 550
bicolor 19:142, 195; 20:621
mechowii 19:123, 152, 195; 20:621
micheli 19:195
sabiensis 19:195; 20:621
transvaalensis 19:152, 195; 20:621
Xenochrophis (see also other natricines) 5:200– 205; 7:218, 222, 225, 227, 503; 8:42, 663, 694; 16:11, 121, 123, 149, 287, 305; 19:146, 233; 21:492, 497
cerasogaster 19:217; 20:649
flavipunctatum 19:217
maculatum 19:154, 217
muscle tissue 11:282–283, 336
piscator 8:42, 663, 694; 19:125, 151, 166, 217, 415–416, 419; 20:649
punctulatus 19:217
trianguligerus 19:154, 217
vittatus 19:147, 154, 217
Xerodermatini 19:131, 133, 158, 171, 224
Xenoderminae(atinae) 19:224; 20:551, 555–557, 573–574, 631
dentition 1:181–182
jaw muscles 4:441–442
Xenodermus 15:662; 19:154, 224; 20:556; 21:488, 497
axial skeleton 1:298
dentition 1:181–182
eye 2:49
javanicus 19:217; 20:631
jaw muscles 4:481
Xenodon 5:135, 148; 7:277, 503; 8:646, 694; 16:149, 199, 201; 19:134, 227; 20:457, 495, 516, 565, 574, 656
adrenal 3:281, 304, 306
axial muscles 11:357, 391, 398–399, 416
bertholdi 19:217
blood chemistry 3:10
dentition 1:177, 182–183
ear 2:272
gigas 20:654
guentheri 19:217
histology of gut 6:244, 255, 259, 261–263, 265, 287
internal relief of gut 6:193, 196, 202, 208
jaw muscles 4:441, 481
merremii 20:568
neuwiedi 19:217
rhabdocephalus 19:217; 20:656
severus 19:217; 20:656
urinogenital system 6:38, 83, 97, 100, 117
Xenodontinae 20:365, 495, 526, 551, 554, 561, 563, 574, 576, 578, 582, 652; 21:577
dentition 1:182; 19:150, 226–227
internal relief of gut 6:193
Xenodontini 19:227
Xenogeneic
erythrocytes 14:638, 645
spleen cells 14:643
Xenografts 14:240, 639–642, 663
Xenon 13:8
clearance 12:286
Xenopeltid 10:223, 225, 239
Xenopeltidae 7:498; 8:46, 697; 15:645; 16:151; 19:33; 186, 234; 20:354, 396, 432, 563; 21:549
axial muscles 11:357, 402–403, 407, 431
axial skeleton 1:285, 291–292, 296
chondrocranium 11:177–178
jaw muscles 4:430, 440, 480
Xenopeltinae 20:424
Xenopeltis 7:498; 8:58, 697; 9:30; 10:204, 230; 16:152; 18:437; 19:166, 234; 20:423–424, 426, 428–430, 432–435, 437, 456, 478, 591; 21:484, 529, 553, 555, 570, 579–580, 600, 602, 610
axial muscles 11:357, 402–403, 408
axial skeleton 1:292
chondrocranium 11:169, 171, 176–178, 182
dentition 1:179
ear 2:268, 271
eye 2:54, 56
hainanensis 20:424, 426, 428, 603
jaw muscles 4:430, 442–445, 447, 480
nose 2:120, 126, 136, 179
pancreas 3:323
unicolor 19:141, 148, 186; 20:424–428, 603
urinogenital system 6:29–30
Xenophidiidae 19:100, 130, 158, 171, 189, 218; 20:354, 610
Xenophidion 19:218; 20:482
acanthognathus 19:189
schaeferi 20:610
Xenopholis 16:231; 19:224
axial skeleton 1:292
scalaris 19:217; 20:656
undulatus 19:217; 20:656
Xenopsin 17:654
Xenopus 8:2; 13:182; 14:7, 46; 17:567, 624, 635, 640, 654
laevis 18:245; 19:319, 568
limb regeneration 15:390
muscle tissue 11:289, 300–301
somite formation 15:128
urinogenital system 6:43
Xenosauridae 9:335, 338; 12:99; 15:33, 333, 628; 16:36, 142; 19:21, 30, 38; 20:56–57, 195–196, 209, 211, 213, 215, 217–218, 253, 255–256, 266, 268–269, 271, 273, 309; 21:15, 80, 96, 109, 398
axial skeleton 1:242, 255, 257, 262–263, 269
chondrocranium 11:108
ear 2:240–241, 248, 271
eye 2:13, 27, 30, 89
jaw muscles 4:289, 316, 376–381, 417, 479
pituitary 3:195
taxonomic literature 2:320
thyroid 3:206
Xenosaurus 15:333; 16:36; 19:70; 20:178, 196, 209–217, 257, 259, 262, 269–270, 273, 282; 21:90, 148, 155, 160, 176, 275, 278, 289, 291, 298–299, 398
axial skeleton 1:241–243, 253, 257, 260–261, 263, 268–269
chondrocranium 11:108
dentition 1:169
ear 2:248, 271
eye 2:27, 31
grandis 19:30, 81; 20:211, 302, 309
jaw muscles 4:315, 318, 376–381, 479
Xenotyphlops 19:100, 235
grandidieri 19:184
Xenoxybelis 19:227
argenteus 19:217
Xeric environment 5:13
Xerophilic reptiles 5:458
Xiphiplastron 4:55
Xiphocercus
ear 2:266, 271
parathyroid 3:255
Xiphiplastron 1:320, 330
Xiphisternum 1:261; 21:10, 15, 62–65, 67, 69, 90
Xylocaine 5:53
Xylophis 16:121; 19:148, 217, 224; 20:556, 573; 21:497, 555
perroteti 19:217; 20:645
stenorhynchus 19:217
Xylotape 18:138
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