INDEX. 



707 



Epistome of Polyzoa, 184 

 Epislylis, 39 

 Epithelium, 7 



Epizoanthus Americanus, 79 

 Equus asinua, 605 



caballus, races of, 603 



hemionus, 604 



onager, 604 

 Eretmoclielys imbricata, 510 

 Erimyzon oblongum, 443 

 Escliai-ina, 186 

 Eslheria Belfragel, 282 

 Euclione elegans, 216 

 Euplectellum aspergillum, 48 

 Eupomotis aureus, 455 

 Euproops Dause, 302 

 Eupyrgus, 128 

 Eurypauropus, 338 

 Eurystomese, 94 

 Eustrongylus buteonis, 169 



chordeilis, 169 



gigas, 168 



papillosus, 169 

 Evolution, 11 



Existence, struggle for, 673 

 Eye, 610 



dorsal, of Mollusca, 237 



of blind craw-fish, 295 



of Crustacea, 270 



of mollusks, 254 



Fasciola hepaticum, 150 

 Eauna, 661 



chief zoological, 666 

 Favia, 80 

 Feathers, 523 

 Pelis concolor, 617 



domestica, 617 

 Feraj, 614 

 Fer-de-lance, 499 

 Fertilization of egg, 644 

 Fierasfer, 459 

 Filaria hematica, 170 



lentis, 170 



Filaria hematica, medinensis, 

 169 



sanguinis-hominis, 170 

 Fishes, see Pisces. 

 Fishes, anatomy of, 484 



bony, 434 



characters of, 411 



climbing, 457 



development of, 445 



Elasmobranch, 414 



flns of, 411, 428 



ganoid, 425 



lateral line of, 442 



mucous canal of, 442 



respiration of, 443 



sounds produced by, 

 442 



spiracle of, 417 



teeth of, 416, 443 



viviparous, 418, 444 

 Fish-hawk, 548 

 Fish lice, 297 

 Fission in Planariaus. 144 

 Flabellura angulare, 80 

 Flagellata, 31, 40 

 Flamingo, 544 

 Flea, 355 



sand, 391, 356 



snow, 344 



water, 279 

 Flounder, 459 

 Fluke- worms, 147 

 Fly, bot, 355 



house, 354, 355 

 Flying-fish, 453 

 Foraminifera, 24, 27 

 Porficula, 344 

 Fossil jelly-fishes, 71 



sea-urchins, 125 



star-flshes, 116 

 Frog, 487 



anatomy of, 470 

 Fuligula vallisneria, 543 

 Fungia, 83 



