American Museum of Natural History

5P6
Rhinoceros annectens, ioo
antiquitatis, 97, 98, 102, I08, 109, III
aurelianensis, 95, 103, I17
bicornis, 83, 97, 98, 105, III, 117
blanfordi, 97, III
brachypus, 95, io8, I09, I I I
crassus, 99
etruscus, 96, I09, I II
goldfussi, 1og
hemitoechus, I I I
hesperius, 100, 140
indicus, 96, [17
inermis, 96
javanicus, 96
leptorhinus, I02, I08, I09, III
longipes, 100
matutinus, I00
megarhinus, 102, 105
merckii, 102, I08, I09
meridianus, I00
nebrascensis, 151
occidentalis, I5 I
oregonensis, I00
pachygnathus, III, 117, 12I
pacificus, I00
palaeindicus, Io8
proterus, 100
sansaniensis, 103
schleiermacheri, io8, I09, II0, III
simorrensis, 103
simus, 97, 98, I05, II2, 117
sondaicus, 83, 96, 97, 98, 117, II8
sumatrensis, 83, 96, 97, 98, 105, 117, II8, II9, 121
tichorhinus, I02
unicornis, 96, 97, ui8
RFinoceroses, 75-164
Aquatic, see Amynodontidae.
Cursorial, see Hyracodontidae.
True, 96-I21; characters of the living species as a key
to the habits of the extinct species, 96; general
history in America, 98; do. in Europe, I00; morphology
of the molar teeth, 103, II6; the primitive
molar, io5; comparison with the evolution of
a horse molar, 107; sequience of molar evolution,
107; summary of molar evolution, I 12; premolar
evolution, 112; milk dentition, evolution of cutting
teeth, I 14; morphology of the skull, I I6; preliminary
basis of classification, ii9; preliminary
bibliography, 12I-125. See also Rhinocerotidie.
Rhinocerotidie, 79, 80, 85, 94, 95-I64, 371; for detailed
index see Rhinoceroses.
Rhinocerotine, 84, 85
Rhinocerotoidea, morphology of the skull and teeth, 8o-
121; aquatic, 8o; cursorial or upland, 8o; true
or lowland, 8o; specialization in habits, 8I-83;
geological and geographical distribution, 84;
primitive cranial characters, 85; primitive dental
characters, 86 ; parallel evolution of the molar
teeth, 88-90; divergent evolution of the skull,
91; divergent evolution of the teeth, 91; final
divergence of the three families of, 92
INDEX TO VOLUME I.
Rhopalodon, 464
Rhynchocephalia, 452, 456, 462, 466, 468, 469, 494, 500,
506
Rhynchosauria, 466, 477-480, 499, 500, 505, 5o6
Rhynchosauria vera, 466, 468, 477
Rhynchosauridae, 468
Rhynchosaurus, 466, 468, 469, 478, 479
Ronzotherium, 120, 136
SANNINA, 222, 242
exitiosa, 267
exitiosa var. fitchii, 269
exitiosa var. luminosa, 269
horites, 241
opalescens, 271
pacifica, 27I
uroceriformis, 225, 230, 242
uroceripennis, 242
Sanninoidea, 217, 222, 226, 265
exitiosa, 220, 221, 226, 227, 228, 229, 266
exitiosa var. ed'wardsii, 266, 269
exitiosa var. fitchii, 266, 269
exitiosa var. luminosa, 269
graefii, 229, 266, 271
graefii var. barnesi, 266, 272
opalescens, 229, 27I
pacifica, 228, 266 (in error for opalescens), 271
Saphaeosaurus, 468, 474, 494, 495
Sauranodon, 468, 494, 495, 496, 500
incisivus, 495
Sauranodontidae, 495
Saurophidium, 494, 495
Sauropterygia, 455, 456, 458
Saurosternon, 468
Scaphiocrinus carinatus, 31
orbicularis, 30
tortuosus, 32
Sciapteron, 245
admirandus,. 226, 254
cupressi, 249
denotata, 248
dollii, 252
dollii var. castaneus, 253
geliformis, 309
griefi, 271
palmii, 251
polistiformis, 250
praecedens, 226, 255
robiniae, 248
scepsiformis, 250
seminole, 253
simulans, 251
syringae, 244
tricincta, 247
Sciuridae, 370
Sciurus, 369
Sesia, 222, 223, 224, 275
acerni, 226, 229, 231, 277, 294
achillae, 278, 308
aemula, 298
alaskae, 276