576 
Icelinus, ii, 442 
Icelus, ii, 442, 449 
Icosteida, ii, 285 
Icosteus, ii, 285 
Ictalurus, i, 291, 292; li, 179- 
181 
figure of, i, 280 
ichthyized fishes, i, 210 
Ichthyocephali, ii, 140, 141 
Ichthyodectes, ii, 48 
Ichthyodectide, ii, 48 
Ichthyodorolites, i, 516, 529, 
566 
ichthyologists, 
portraits of, i, 399, 403, 
407, 409, 413, 417, 421, 
425, 5313, 516, 525, 5455 
561, 599, O01 
ichthyology, 
Aristotle on, i, 387 
history of, i, 387-428 
Ichthyotomi, i, 437, 446 
order of, i, 519 
Parker & Haswell on, i, 
520 
Ichthyomyzon, i, 491 
Ichthyopsida, i, 601 
Ichthyosism, i, 183 
Ichthysauroides, i, 586 
Icthyscopus, ii, 503 
Ictiobus, i, 291; i, 172 
figure of, ii, 173 
shoulder-girdle of, i, 51; 
ii, 160 
id, ii, 168 
Idiacanthide, ii, 138 
Idus, ii, 168 
igami, ii, 390 
Tlarches, ii, 400 
Tlarchide, ii, 291, 400, 401 
Tlarchus, li, 398 
Tlisha, i, 271; ii, 52 
TIlyophide, ii, 150 
imaginary garpike, i, 364 
incisor teeth, figured, i, 31 
inconnu, 
figure of, ii, 67 
Indian fauna, i, 267 
extension of, i, 265 
Indian fish, li, 405 
Indian sawfish, 
figure of, i, 200 
Indian parrot-fish, 
figure of pharyngeals, ii, 
fo 
393, 
Indigo damsel-fish 
figure of, ii, 384 
infraclavicles, ii, 13 
infundibulum, ii, 6 
Iniistius, ii, 389, 390 
Inimicus, i, 2363; ii, 434 
figure of, frontispiece, IT. 
Vol. 
Index 
Iniomi, i, 405; ii, 38, 40, 41, 
138, 189, 190, 204, 526 
suborder of, ii, 129 
iniomous fishes, 
photophores of, i, 189 
instincts in fishes, 
basis of, i, 154 
classification of, i, 154 
of courtship, i, 155 
heredity in, i, 154 
of migration, i, 156 
variability of, i, 155, 156 
Whitman on, i, 156 
intensity of coloration, i, 232 
interclavicle, 
Starks on, ii, 227 
interhemals, i, 49; ii, 348 
interneurals, i, 49; ii, 15 
intestine of fish, i, 33 
intromittent organ, i, 124 
Investigator, the i, 408; ii, 
60 
Toa, ii, 313 
Ionoscopus, ii, 36 
Ipnopide, ii, 131 
Ipnops, 
figure of, i, 181; ii, 131 
Irish lord, ii, 442 
figure of, ii, 443 
Irish Pampano, 
figure of, ii, 349 
isabelita, 
figure of, ii, 404 
Isaciella, i, 270 
isaki, ii, 342 
Ischnacanthide, i, 517 
Ischnacanthus, i, 517 
Ischyodus, i, 565 
ishigakidai, ii, 360 
Ishikawa, i, 416 
ishinagi, li, 323 
Iso, 
figure of, ii, 218 
isocercal tail, i, 49, 83, 602 
Cope on, i, 84 
figure of, i, 83 
Isopholide, ii, 26 
Isopholis, ii, 26 
figure of, ii, 27 
Isospondyli, i, 204, 406; ii, 
26, 28, 29, 33, 34, 36, 37— 
Go, 128, 129, 138, 139, 
142, 148, 159, 160, 188— 
190, 209, 250 
order of, ii, 38 
Tsotoenia, i, 565 
isthmus, i, 45 
isthmus barriers, i, 255-281 
Isthmus of Panama, 
as barrier, i, 269 
fish fauna of, i, 266, 271 
species of shores, i, 269 
Isthmus of Suez, i, 255, 258 
Isthmus of Suez, 
as barrier, i, 266 
submergence of, i, 267 
Istizus, 
figure of, ii, 46 
Istiophoride, ii, 268 
Istiophorus, ii, 269 
Istlarius, ii, 182 
Isuropsis, 
figure of, i, 537 
Isurus, i, 537, 538 
Italian parrot-fish, i, 48 
figure of, ii, 391 
ito, 
figure of, ii, 107 
itoryori, ii, 340 
iwana, li, 114 
jack mariddle, ii, 43 
Jackson, 
on Embiotocide, ii, 375, 
393 
Jacobi, 
artificial impregnation by, 
i, 150 
Jacoby, 
on origin of eels, ii, 144, 145 
Jacquinot, i, 408 
Jadgeska hatchery, ii, 86 
Jekel, i, 427, 428, 591 
jallao, ii, 341 
Janassa, 
teeth of, i, 554 
Japan, 
Black Current of, i, 255, 
256, 258 
fishes of, i, 256 
fresh-water fauna of, i, 256 
Japan and Mediterranean 
fish faunas, i, 259, 260 
Japanese blenny, 
figure of, i, 9; ii, 513 
Japanese catfish, ii, 183 
Japanese dace, ii, 170 
Japanese filefish, 
figure of, i, 241 
Japanese samlet, 
figure of, i, 321 
Japanese sea-horse, 
figure of, i, 250 
jaqueta, ii, 383 
jara-bakka, i, 171 
jawfish, 
_ figure of, ii, 359 
jaws, i, 201 
of Amia, i, 43 
bones of, i, 41, 43 
figured, i, 30, 43, 583; li, 39 
of parrot-fish, 1, 30; ii, 391, 
393 
of shark, i, 35 
Jenkins, i,'420; ii, 52 
on fishes of Panama, i, ‘274 
