432 MEMOIRS OF THE CARNEGIE MUSEUM 
ceur, Mugil, 176 
Ogallala formation, 74 
O-ke, 190 
Olcott, T. F., 72, 73, 205 
Oligobunis lepidus, 276, 278 
-phylum, 277 
Oligocene Canidae, 245, 252, 261 
oligodon, Pseudorhombus, 201 
olivaceus, Hepatus, 198 
Oltinotherium, 152, 154 
Ophicephalide, 193 
Ophicephalus maculatus, 193 
polylepis, 193 
tad’anus, 193 
striatus, 373 
Ophichthus cephalozona, 172 
evermanni, 159, 172 
Ophichthyide, 172 
Ophidium barbatum, 358 
ophthalmica, Clupea, 356 
Opsariichthys barbatus, 169 
orbicularis, Sceeops, 201 
orbiculata, Lampsilis, 287, 296, 302, 318, 
320, 321, 334 
orbis, Ephippus, 197 
Orectolobide, 161 
Orectolobus japonicus, 161 
Oreodon beds, North Dakota, 49 
Oreodonts, 42, 131 
orientalis, Scomberoides, 178 
Synaptura, 201 
Ortmann, A. E., 339 
A Monograph of the Najades of 
Pennsylvania, 279-347 
Orycynus lanceolatus, 372 
latior, 373 
oryeynus, Scomber, 373 
Osborn, Professor Henry Fairfield, 42, 144, 
154, 155 
Ostichthys japonicus, 177 
Ostracide, 199 
Ostracion cornutum, 199 
Ostracodermi, 390 
ovalis, Sparnodus, 378 
ovata, Anodonta, 300 
Lampsilis, 287, 296, 302, 318, 320, 334 
ovenii, Nemipterus, 185 
oxycephala, Eleotris, 200 
Oxyurichthus cristatus, 201 
papuensis, 201 
pachycephalus, Brachypsalis, 277 
Zacco, 170 
Pagellus, 377 
Pagrus, 377 
cardinalis, 189 
major, 189 
Paleeorhynchide, 386 
Paleontological Collection of University of 
California, 64 
Palmer, T. S., 154 
papuensis, Oxyurichthus, 201 
Paradaphcenus, 212, 260 
paradoxum, Amphistium, 382, 383 
paradoxus, Cristiceps, 388 
Pterygocephalus, 388, 404 
Parahyus vagans, 43 
paralepoides, Rhamphognathus, 359 
Paraplagusia bilineata, 202 
Paraptera, 301, 334, 338 
gracilis, 302, 338, 342, 345 
Pararasbora maltrechti, 170 
Parasalanx acuticeps, 167 
Parasilurus asotus, 168 
Parmaturus pilosus, 161 
Paroligobunis, Affinity and systematic 
position of, 275 
Paroligobunis, 278 
(Potamotherium) lacota, 276 
simplicidens, 269-271, 274-277 
parva, Lampsilis, 287, 296, 302, 305, 308, 
317, 334 
Patriofelis, Osteology of, 216 
Pediculati, 389 
Peking Dialect, 16 
pelagicus, Scomber, 367 
pelamis, Scomber, 373 
Pelonax, 56, 57 
bathrodon, 57-60 
potens, 60 
ramosum, 56, 57, 91, 147 
Pempheride, 181 
