Testudo crassiscutata, 398, 459 
culbertsonii, 386 
cultrata, 397, 411 
cyclopygia, 438 
eda, 398, 450 
emiliz, 398, 419 
exornata, 397, 401 
farri, 398, 418 
gilberti, 398, 449 
hadrianus, 376 
hemispherica, 386 
hexagonata, 398, 463 
hollandi, 398, 451 
impensa, 398, 431 
insculpta, 295 
Inusitata, 398, 417 
klettiana, 398, 436 
lata, 386 
laticaudata, 398, 462 
laticunea, 397, 402 
ligonia, 397, 405 
nebrascensis, 386 
niobrarensis, 398, 437 
obtusa, 398, 458 
oregonensis, 392 
orthopygia, 398, 438 
osborniana, 398, 422 
oweni, 386 
pansa, 398, 420 
peragrans, 398, 412 
pertenuis, 398, 454 
quadrata, 397, 410 
snoviana, 438 
serpentina, 223 
thomsoni, 397, 400 
turgida, 398, 453 
undata, 398, 435, 438 
vaga, 398, 414 
Thalassemydida, 126, 127 
Thecophora, 43 
Thescelus, 58, 94 
insiliens, 95 
rapiens, 97 
thomasi (Plastomenus), 467, 474, 476, 537 
(Trionyx), 474 
thomsoni (Testudo), 397, 400 
timida (Chrysemys), 345 
Toxaspis anguillulata, 364 
Toxochelyidx, 163 
Toxochelys, 163 
bauri, 168, 178 
brachyrhina, 168, 171 
elkader, 168, 174 
latiremis, 166, 168 
procax, 168, 176 
serrifer, 168, 170, 172 
stenopora, 168, 172 
Trachemys, 288, 347 
bisornata, 348, 353 
euglypha, 348, 350 
hilli, 348 
jarmani, 348, 351 
petrolei, 348, 352 
sculpta, 348, 351 
trulla, 348, 355 
trepida (Platypeltis), 536, 541 
tricarinata (Baptemys), 275 
Trionychida, 18, 35, 483 
Trionychoidea, 10, 17, 20, 25, 43, 465 
trionychoides (Anostira), 541 
(Plastomenus), 541 
(Platypeltis), 537, 541 
Trionyx, 10, 17 
INDEX. 555 
Trionyx buiei, 534 
cariosus, 515 
cellulosus, 534 
coalescens, 488 
concentricus, §23 
ferox, 548 
foveatus, 486, 492 
guttatus, 503 
halophilus, 513 
heteroglyptus, 543 
leptomitus, 470 
leucopotamicus, 546 
lima, 533 
pennatus, 514 
priscus, 512 
punctiger, 547 
radulus, 517 
scutumantiquum, 521 
thomasi, 474 
uintae€nsis, 519 
vagans, 488, 490, 497 
ventricosus, 516 
Virgimianus, 515 
tritor (Amyda), 511, 529 
(Aspideretes), 529 
trulla (Trachemys), 348, 355 
tuberosa (Neptunochelys), 187 
(Protostega), 187 
tuberosus (Atlantochelys), 187 
tumidus (Hadrianus), 374, 380 
turgida (Testudo), 398, 453 
turgidus (Agomphus), 249 
(Emys), 249 
uintaénsis (Amyda), 511, 519 
(Trionyx), 519 
uintensis (Echmatemys), 298, 342 
undata (Baéna), 85, 87 
(Testudo), 398, 435, 438 
(Xerobates), 449 
undatum (Chisternon), 85 
vaga (Testudo), 398, 414 
vagans (Aspideretes), 486, 497 
(Trionyx), 488, 490, 497 
variolosa (Basilemys), 226 
variolosus (Adocus), 226 
(Compsemys), 226 
ventricosa (Amyda), 511, 516 
ventricosus (Trionyx), 516 
| Vertebra of turtles, 4, 8, 12 
victa (Compsemys), 233 
virginiana (Amyda), 511, 515 
virginianus (Trionyx), 515 
visendus (Plastomenus), 467, 476 
vorax (Aspideretes), 486, 496 
vyomingensis (Adocus), 271 
(Dermatemys), 271 
(Emys), 308 
Wasatch epoch, turtles of, 37 
wielandi (Lytoloma), 157 
Writers on fossil turtles, 1 
wyomingensis (Baptemys), 270 
(Chrysemys), 308 
(Dermatemys), 271 
(Echmatemys), 298, 308 
(Emys), 308, 313, 316, 337 
Xenochelys, 224, 225, 226, 282 
formosa, 282 
Xerobates cyclopygius, 438 
orthopygius, 438 
undata, 449 
Zygoramma, 225, 226, 257 
microglypha, 259” 
striatula, 257 
