554 
Prochonias enodis, 115 
leshanus, 111 
longinuchus, 108 
princeps, 114 
strenuus, 114 
sulcatus, 106 
Procolpochelys, 209, 215 
grandeva, 216 
Proganochelyida, 45 
Proganochelys, 45 
prophylaus (Lembonax), 214 
Propleura, 127, 128 
borealis, 141 
jeanesi, 156 
repanda, 150 
sopita, 141, 162, 163 
propylaus (Lembonax), 214 
Protostega, 190 
advena, 199 
gigas, 190 
ischyros, 202 
neptunia, 188 
potens, 189, 198 
tuberosa, 187 
Protostegida, 189 
Pseudemys, 288, 356 
bisornatus, 353 
celata, 356 
extincta, 356 
hilli, 348 
Pseudotrionyx, 19, 225 
puercensis (Aspideretes), 486, 499 
pulchra (Baéna), 92 
(Boremys), 92 
punctatus (Adocus), 236 
punctiger (Trionyx), 546 
punctulatus (Plastomenus), 467, 468 
Puppigerus, 215 
grandavus, 216 
parviscutum, 220 
parvitecta, 220 
pusilla (Echmatemys), 298, 337 
putnami (Terrapene), 360 
quadrata (Testudo), 397, 410 
quadratus (Hadrianus), 376 
radiolata (Anostira), 281 
radula (Amyda), 511, 517, 518 
radulata (Anosteira), 281 
radulina (Anostira), 281 
radulus (Trionyx), 517, 518 
rapiens (Thescelus), 97 
repanda (Catapleura), 150 
(Propleura), 150 
repandus (Osteopygis), 150 
Rhetechelys, 127, 161 
platyops, 162 
riparia (Baéna), 60, 76 
robustus (Osteopygis), 128, 134 
rugosus (Eupachemys), 458 
sagatus (Aspideretes), 486, 497 
salebrosa (Amyda), 511, 524 
saliens (Hoplochelys), 265 
saxea (Clemmys), 290, 294 
schucherti (Hadrianus), 374, 382 
sculpta (Probaéna), 58 
(Trachemys), 348, 351 
Scutes, horny, 18 
scutumantiquum (Amyda), 511, 521 
(Trionyx), 521 
septaria (Echmatemys), 298, 319 
(Emys), 319 
serialis (Plastomenus), 537 
(Platypeltis), 536, 537 
serpentina (Chelydra), 223 
(Testudo), 223 
serrifer (Toxochelys), 168, 170, 172 
INDEX. 
shaughnessiana (Echmatemys), 298, 327 
(Emys), 327 
Shell, structure of, 2, 8, 10, 12, 14, 17, 18, 23 
Shoulder-girdle, 6, 9, 11, 13, 16 
sima (Baena), 71 
singularis (Aspideretes), 486, 501 
sinuosa (Basilemys), 229 
Skull, structure of, 5, 9, 11, 13, 15, 19, 24 
snoviana (Testudo), 438 
snovianum (Caryoderma), 438 
Soft-shelled turtles, 10 
sopita (Chelone), 149, 155 
(Osteopygis), 141 
(Propleura), 141, 163 
sopitus (Osteopygis), 128, 149 
speciosa (Naomichelys), 101 
spectabilis (Gyremys), 288 
splendidus (Aspideretes), 486, 490 
Staurotypus, 224, 225 
stenopora (Toxochelys), 168, 172 
stevensoni (Emys), 316 
stevensoniana (Echmatemys), 298, 316 
stevensonianus (Emys), 300, 316 
strenuus (Prochonias), 114 
(Taphrosphys), 105, 114 
striatula (Zygoramma), 257 
Stylemys, 369, 373, 385 
calaverensis, 386, 396 
capax, 38, 392 
conspecta, 385, 393 
| culbertsonu, 386 
| nebrascensis, 386, 392, 393 
niobrarensis, 437 
oregonensis, 392 
Suborders of turtles, 25 
substricta (Alamosemys), 260 
sulcatus (Platemys), 104, 105, 106 
(Prochonias), 106 
(Taphrosphys), 105, 106 
Supernumerary scutes, 57 
Syllomus, 209, 211 
crispatus, 211 
syntheticus (Adocus), 236, 242, 244 
tantillus (Plastomenus), 467, 478 
Taphrosphys, 102, 104 
dares, 105, 120 
leslianus, 105, 111 
longinuchus, 105, 108 
molops, 105, 115 
nodosus, 105, 122 
princeps, 114 
strenuus, 105, 114 
sulcatus, 105, 122 
tardus (Agomphus), 249, 252 
Temnotrionyx, 534 
manducans, 534 
Terrapene, 286, 288, 359 
anguillulata, 364, 366, 367 
canaliculata, 360, 363 
eurypygia, 360, 364 
marnochi, 360, 362 
putnami, 360 
terrestris (Emys), 344 
(Paleotheca), 344 
testudinea (Echmatemys), 298, 303 
(Emys), 303 
(Notomorpha), 303 
Testudinide, 33, 367 
Testudines, definition of, 43 
Testudo, 367, 372, 373) 397 
amphithorax, 397, 407 
arenivaga, 398, 430 
atascose, 398, 464 
brontops, 397, 398, 400 
campester, 398, 455 
corsoml, 376 
