552 
gravis (Notomorpha), 269 
Greensand of New Jersey, turtles of, 37 
guttatus (Aspideretes), 486, 503 
(Trionyx), 503 
Gyremys, 287, 288 
spectabilis, 288 
Hadrianus, 368, 373 
allabiatus, 383 
corsonil, 374, 376 
majusculus, 374 
octonarius, 376 
quadratus, 376 
schucherti, 374, 382 
tumidus, 374, 380 
hadrianus, (Testudo), 376 
halophila (Amyda), 511, 513 
halophilus (Trionyx), 513 
hatcheri (Baéna), 63, 92 
haydeni (Echmatemys), 298, 313 
(Emys), 308, 313 
hebraica (Baéna), 87 
hebraicum (Chisternon), 87 
heckmani (Acherontemys), 222 
Helochelys, 46 
Helopanoplia, 483, 485 
distincta, 485 
hemispherica (Emys), 386 
(Testudo), 386 
hesperia (Clemmys), 290, 292 
heteroglypta (Platypeltis), 537, 543 
heteroglyptus (Trionyx), 543 
hexagonata (Testudo), 398, 463 
hilli (Pseudemys), 348 
(Trachemys), 348 
hoffmanni (Allopleuron), 209 
Holcodus acutidens, 187 
hollandi (Testudo), 398, 451 
Homorophus, 225, 226, 260 
insuetus, 260 
Hoplochelys, 225, 226, 263 
crassa, 263 
paludosa, 266 
saliens, 265 
Hybemys, 287, 344 
arenaria, 345 
imbricaria (Basilemys), 231 
imbricarius (Adocus), 231 
(Compsemys), 231 
impensa (Testudo), 398, 431 
incisus (Cynocercus), 180 
ingravata (Naiadochelys), 125 
inornata (Chrysemys), 358 
(Graptemys), 358 
insculpta (Clemmys), 290, 295 
(Testudo), 295 
insignis (Plastomenus), 467, 469 
insiliens (Thescelus), 95 
insuetus (Homorophus), 260 
insularis (Lembonax), 213 
inusitata (Testudo), 398, 417 
ischyros (Archelon), 202 
(Protostega), 202 
jarmani (Trachemys), 348, 351 
jeanesi (Emys), 308 
(Lytoloma), 156 
(Propleura), 156 
jeanesianus (Emys), 308 
Judith River epoch, turtles of, 36 
Kallistira, 225, 226, 267 
costilata, 267 
klettiana (Testudo), 398, 436 
lacer (Adocus), 236, 241 
lachrymalis (Plastomenus), 467, 472 
Laramie, turtles of, 36 
lata (Emys), 386 
(Testudo), 386 
INDEX. 
laticaudata (Testudo), 398, 462 
laticeps (Porthochelys), 180 
laticunea (Testudo), 397, 402 
latifrons (Eubaéna), 83 
latilabiata (Echmatemys), 298, 339 
(Emys), 298, 339 
latiremis (Toxochelys), 166, 168 
lativertebralis (Echmatemys), 298 
(Emys), 298 
Lembonax, 209, 212 
insularis, 213 
polemicus, 212 
prophyleus, 214 
propyleus, 214 
Lepidochelys, 8, 9, 10, 216 
leptomitis (Plastomenus), 467, 470 
(Trionyx), 470 
leslianus (Taphrosphys), 105, 111 
(Prochonias), 111 
leucopotamica (Platypeltis), 537, 546 
leucopotamicus (Trionyx), 546 
ligonia (Testudo), 397, 405 
lima (Amyda), 511, 533 
(Trionyx), 533 
Limbs, structure of, 7, 9, 11, 12, 14, 16, 24 
lineatus (Adocus), 236, 247 
lineolatus (Compsemys), 247 
longinuchus (Taphrosphys), 105, 108 
lowi (Desmatochelys), 185 
Lytoloma, 127, 154 
angusta, 155, 157 
crassicostatum, 154, 160 
jeanesi, 156 
platyops, 160, 162 
wielandi, 157 
Macrochelys, 222 
floridana, 222 
majusculus (Hadrianus), 374 
manducans (Temnotrionyx), 534 
marnochi (Cistudo), 362 
(Terrapene), 360, 362 
marshi (Archelon), 208 
(Baéna), 61, 62 
masculinus (Agomphus), 249, 255 
mawii (Dermatemys), 284 
megaulax (Echmatemys), 298, 301 
(Emys), 301 
Mesozoic, turtles of, 36 
microglypha (Zygoramma), 259 
Miocene, turtles of, 37 
mira (Amyda), 511, 527 
missuriensis (Polythorax), 100 
mitchelli (Mosasaurus), 188 
molaria (Erquelinnesia), 160 
molopina, (Anostira), 481 
molopinus (Plastomenus), 467, 481 
molops (Bothremys), 115 
(Taphrosphys), 105, 115 
morrisie (Clemmys), 290 
mortoni (Atlantochelys), 188 
Mosasaurus mitchell, 188 
multifoveatus (Plastomenus), 470, 474 
Naiadochelys, 102, 125 
ingravata, 125 
naomi (Echmatemys), 298, 335 
Naomichelys, 58, 101 
speciosa, 101 
nassau (Aspideretes), 486, 498 
nebrascensis (Emys), 386 
(Stylemys), 386, 392, 393 
(Testudo), 386 
Neck, structure of, 4, 8, 11, 13, 15, 20 
neptunia (Protostega), 188 
Neptunochelys, 187 
tuberosa, 187 
Neurankylus, 58, 93 
