INDEX 



291 



Eye, v. Pineal eye. 



Feeling, sense of, 46-48. 



Fertilization phenomena, 186, 187, v. 

 comparison tables of the early devel- 

 opment of fishes, 280. 



J-ifrasfer, 169, 170; F. acits, 169 (Fig. 



175)- 

 Fins, location of, 3, 4; evolution of, 



30-46 (Figs. 39-54) ; unpaired, 31- 

 39 (Figs. 39-43); dorsal and anal, 

 31-35 ( Fi s - 39-43); caudal, 35- 

 39 (Figs. 44-48); paired, 39-46 

 (Figs. 49-54); pectoral, 41-43 (Figs. 

 49. 5 I ~54); ventral, 41-43 (Fig. 

 50); of Chimseroids, 113; primitive 

 dermal, 31 ; of Cladoselache, 33 (Fig. 

 41) ; of Calacanthns, 34 (Fig. 43) ; 

 of Crossopterygian (Holopty chins), 



33 (Fig. 43)- 



Fin spines, 23; description of, 28-30 

 (Figs. 32-38) ; of Acanthodian, 29 

 (Fig. 32) ; of Hybodits, 29 (Fig. 

 33); of sting-ray, 28, 29 (Fig. 34); 

 of Edestus heinrichsii, 28, 29 (Figs. 

 35-38); of Chimseroids, 113. 



Fishes, defined, I; movement of, 1,2 

 (Figs. I, 2); type of swift swim- 

 ming fish, 3, 4 (Fig. 3) ; balanced 

 in water, 1,4; symmetry of, 4; nu- 

 merical lines of, 5, 6 (Figs. 5-8) ; 

 effect of environment of, 7; classifi- 

 cation of, 7, 8; geological distribu- 

 tion of, 9; importance of group, 10; 

 permanence of, 10; evolution of, II ; 

 generalized, 12; characteristic struc- 

 ture of, 14-56 (Figs. 9-60); meta- 

 merism, 14-16; aquatic breathing, 

 gills, etc., 16-23 (Fig 5 - 9-!9)' der- 

 mal defences of, 23-30 (Figs. 20- 

 38) ; teeth in highly modified fishes, 

 28; development of, 179-225 (Figs. 

 186-309); embryology of, 1 79 ; eggs 

 and breeding habits of, 180-186 

 (Figs. 186-199); fertilization of 

 eggs of, 1 86, 187; development of 

 eggs of, 187-214 (Figs. 200-283); 

 larval development of, 213-225 



(Figs. 284-309); names of authors 

 and works, on the general subject, 

 231-234; skeletons, table of, 252, 

 253 (Figs. 69, 84, 105, 122, 146, 

 147, and 310-315); skull, jaw, and 

 branchial arches, tables, 254 (Figs. 

 310-315); heart of, 258 (Figs. 

 316-325), 260; comparison tables 

 of heart of, 260; gills, spiracles, 

 gill rakers, and opercula, tables, 

 259 (Figs. 9-12), 260, 261; di- 

 gestive tract, tables, 262 (Figs. 326- 

 331), 263; swim-bladder, tables, 

 264, 265 (Figs. 13-19); genital 

 system, tables, 266, 267 (Figs. 332- 

 337) ; circulation in, tables, 268 

 (Fig. 338), 269; excretory system 

 and urinogenital ducts, 270, 271 

 (Figs. 332-337, p. 267); abdominal 

 pores, 271 ; brain of, 272 (Figs. 339- 

 341), 273 (Figs. 342-344); central 

 nervous system, tables, 274, 275; 

 sense organs, tables of, 276, 277; 

 characters of integument and in- 



' tegumentary sense organs, 278, 

 279; early development, compari- 

 son tables of, 280, 281. 



Flounder, 171; description of, 174, 

 175; Pseudopleitronectes a inert ca- 

 ntts, 172 (Fig. 183). 



Fossil forms, v. Sharks, Chimceroids, etc. 



Fraas, 157. 



Fric, 102, 119. 



Frilled shark, v. Chlamydoselache, etc. 



Fritsch, A., 42, 83. 



Gadoid, 9. 



G 'adits, v. Cod. 



Gage, S., 182. 



Ganoid plates, in sEtheolepis, 24 (Fig. 

 25); in Lepidosteus, 24 (Fig. 24); 

 in Callichthys, 24 (Fig. 26). 



GANOIDS, in classification, 8, 148; an- 

 tiquity of, 9; dermal plates, 24 (Fig. 

 25), 25; Ganoid includes the Cros- 

 sopterygians, 139 note; the term 

 " Ganoid " used in the popular sense 

 to denote the Teleostomes, 139; con- 



