474 



INDEX 



Hemibranchii 



classification of, 227, 229 

 Hemirhamphus, 223 

 Hemitripurus, Figs. 214, 215, 299 



cranial spikes of, 338 

 Hepatus, 281, Fig. 156 

 Heritage, 444 

 HetfTobranchus, Fig. 77 

 Heterognathi 



skull of, 182 



branchiostegal rays in, 182 



otoliths of, 181, 189 



not related to Amia, 182 

 Heteromi, 200 

 Heterophotodermi, 160 

 Heterosomata, Figs. 224, 225 



characters of, 344 



eyes in, 439 



mouth in, 417 

 HeUrotis, Fig. 58 



otoliths of, 163 

 Hexagrammos, Fig. 209 

 Hildebrand, see Meek and Hildebrand 

 Himantolophus, Fig. 278 



description of, 407 

 Hippoglossus, Figs. 224, 225 

 Histiophoridae, 317 

 Histrio 



second vertebra of, 392 



skull of, 389 

 Hollister, Miss Gloria 



stained preparations of. Figs. 272, 273, 

 274, 275, 276, 279 

 Holocentrus, Fig. 112 



air-bladder of, 237 



preopercular of, 427 



skull of, 235 

 Hoplegnathids, 424, Fig. 124 

 Hoplegnalhus, Fig. 124 



skull of, 250 

 Hoplopagrus, Fig. 300 

 Hoplopuryx, Figs. 110, 283 



premaxills and maxillae of, Fig. 283 



skull of, 233 



vertebrae of, 301 

 Hubbs, Carl L. 



on branchiostegal rays, 182, 203, 224, 

 231 



on changes in proportion, 445 



on classification of Atherinidae, 264 



on Haplomi, 214 



on Isospondyli, 135 



on Microcyprini, 219 



on Percesoces, 261 

 Huxley, Julian 



on growth, 445 

 Hydrocyon, 184, Figs. 69, 75 

 Hyodon, Fig. 60 



affinity with OsUoglossum, 168 



primitive characters of, 174 



skull of, 167 

 Hyodontidae, 173 

 Hyoid arch 



embryology of, 427 



Hyomandibular 



accessory, of Polypurus, 111 

 attachment of head of. Fig. 119 

 in Engraulis, 203 

 homologies of, 108 

 problem of, 80-82 

 support for, 437, Fig. 117 

 suspension of jaws from, 414 

 suspension of jaws from, as basic 



patent, 448 

 of teleostomes, 81 

 types and origin of, 80 



Icelinus, 332 

 Ichthyodectes, Fig. 35 



comparison with Chirocentrus, 142 



skull of, 144 

 Ichthyodectids, extinct, Figs. 35, 36 



mouth of, 416 

 Ictalurus, Fig. 78 

 Ichthyoccus, 157 

 lUicium 



of Aceratias, 407 



of antennariids, 394, 403 



of Branchionichthys, 394 



of ceratioids, 401, 403, 407, 408, 409, 

 410 



of Chaunax, 401 



degeneration of, 448 



of Gigantactinidae, 404 



of Haplophryne, 408, 409 



of Himantolophus, 407 



of Lophius, 287 



of OnetTode!, 407, 409 



of central pediculates, 448 



of Rhynchoceratias, 408 



of sea-bats, 448 

 Inflation 



mechanism of, 290, 292 



power of, 388 

 Iniistius, Fig. 132 



otolith of, 371 



skull of, 257 

 Iniomi 



branchiostegals in, 214 



characters of, 204 



derivation of, 161, 212 



Garstang on, 160 



otolith of, 212 



Parr on osteology of, 207 



skull characters of, 211 



suspensorium in, 212 

 Interarticular disc, 258 

 Interorbital bridge 



functions of, 435 

 Interparietal fontanelle, 193 

 Irreversibility of evolution, see Dollo's 



law, Evolution 

 Isospondyli 



classification of, 136 



definition of, 156 



derivation of Iniomi from, 161,212 



derivation of Synentognathi from, 224 



function of otic region in, 246 

 generalized features of, 135 



IsUus, 144 



htiophorus, 319, Figs. 196, 197 



Jaws, see also Mandible, Protrusility 



adaptive radiation of, 102, Fig. 283 



of anacanths, 381 



in Antennarius, 392 



in Aspius, 193 



attachment to cranium of, 414 



Ayers on, of gnathostomes, 80 



of carps and suckers, 189, Fig. 74 



in Chauliodontidae, 160 



of chiasmodonts, 260 



correlation of, with snout, 453, Fig. 301 



edentulous, of characins, 184 



edentulous, in Cromeria, 155 



edentulous, of cyprinoids, 193 



edentulous types of, 423, 424 



edentulous, in Elops, 138 



in Eleotris, 346 



embryology of, 80, 427 



of enchodonts, 205 



four stages in development of, 84 



in Halocypselus, 221 



Meckel's cartilage of, 80, 120 



in Monopterus, 352 



of morays, 203 



of murasnids, 203 



in Periophthalmus, 346 



of plectognaths, 288, 289, 290 



primary upper, 412 



primary upper, of gnathostomes, 80 



primary upper, in Polypterus, 110, 242 



protrusility in 239, 242, 423, 424 



protrusility of, in Gerres, 253 



protrusility of, in Velifer, 298 



protrusility of, in Zeus, TJX 



of siluroids, 195 

 Jaw muscles 



description of, 415, 425 



insertion of, 141 



relations of, to tendons, Fig. 285 



Vetter on, 425 

 John Dory, see Zeoidei 

 Jordan, David Starr 



on Ciirhitidae, 259 



on Malacanthus, 356 



on Notogoneus, 179 



on Ophiocephalidae, 270 



on Trichodontidas, 371 

 Jordan and Evermann 



on Caracanthus, 341 



on Icelinus, 332 

 Jordan and Hubbs 



on classification of Atherinidae, 264 



on Percesoces, 261 



Kathelosloma, 365, Fig. 245 

 Katsuwonidae, 315 

 Katsuwonus, 319 



