286 



INDEX 



62; development of egg, 189 (Fig. 



215)- 

 Amphibian affinities of the shark, 98 



(Fig. 103). 

 AMPHIOXUS, in classification, 7; gills 



of, 1 6. 



ANACANTHINI, 174. 

 Anal fins, v. Fins. 

 Anatomy, v. Shark, Cladoselache, Acan- 



thodes, Climatius, Pleuracanthus, 



Chondrenchelys, Chimcera, Dipnoan, 



etc. 



Angel-fish, v. Rhina. 

 Anguilla, v. Eel. 

 APODES, 173. 



Aquatic breathing, 1 6-23 ; modes of, 20. 

 Archipterygium, 39. 

 Arius, eggs and breeding habits, 181 



(Fig. 195), i85 l86 - 



Armour plates, 23; evolution of, 25. 



ARTHRODIRA, in classification, 8; de- 

 scribed, 129-138 (Figs. 130-144); 

 geological position of, 9, 129; asso- 

 ciated with Pterichthys by Traquair, 

 130; American, described by New- 

 berry and by Claypole, 130; Din- 

 ichthys, 130 (Frontispiece and Figs. 

 I 33~ 1 37) ; varying size of, 136; den- 

 tition, jaws, and mandibles, 136, 137 

 (Figs. 138-144) ; affinities, 136-138; 

 differing from lung-fishes and from 

 sharks, 136 note. 



Aspidorhynchiis, 157; A. acutirostris, 

 158 (Fig. 162). 



Aspredo, eggs and breeding habits, 186. 



Authors, comparison of phylogenetic 

 tables of, 282, 283; v. Bibliogra- 

 phy. 



Ayers, H., 57, 60, 181. 



Balfour, F. M., 40, 193, 216; phylo- 

 genetic table of, compared, 283. 



Barbels, 46-48 (Figs. 55-60). 



Basking shark, v. Cetorhinus. 



Bass, striped, numerical lines of, 5 

 (Fig. 8). 



Bathyonus compressus, 1 68 (Fig. 172). 



Batrachus, eggs of, 1 86. 



Bdellostoma, gills of, 17 (Fig. 9); 

 anatomy and general description of 

 B.dombeyi, 57, 58 (Fig. 69 A}, 59, 

 60 (Fig. 70), 61 (Fig. 72 A}\ eggs 

 of, 1 80, 181 (Fig. 1 86); genital sys- 

 tem, tables, 266; excretory system 

 and urinogenital ducts, tables, 270; 

 brain of, tables, 272 (Fig. 339) ; cen- 

 tral nervous system, tables, 274. 



Bean, T. H., 103, 108, no. 



Beard, J., 57, 61, 146, 217; phylo- 

 genetic table of, compared, 283. 



Berycids, antiquity of, 9. 



Bibliography, 231-251. 



Blenniids, eggs of, 185 (Figs. 198- 

 199), 186. 



Blenny, v. Blenniids. 



Blood-vessels, v. Fishes, circulation in, 

 Heart, Chimaeioids, etc. 



Boas, J. E. V., phylogenetic table of, 

 compared, 283. 



Bohm, A. A., 187. 



Bolau, H., 185. 



Bony fishes, v. Teleosts. 



Bow-fin, v. Amia calva. 



Brain, of Chimaeroids and sharks, 114; 

 resemblances between lung-fishes 

 and Elasmobranchs, 128; compari- 

 son tables of, 272 (Figs. 339-341), 

 273 (Figs. 342-344), 274-275. 



Branchial arches, table of relations of, 

 254 (Figs. 310-315). 256-257. 



Breathing, aquatic, 1623. 



Breeding habits, 180-186; table of the 

 early development of fishes, 280-281. 



Brevoortia (menhaden), gills of, 20. 



Bridge, T., phylogenetic tables of, 

 compared, 283. 



Bulbus arteriosus, comparative tables 

 of, 258 (Figs. 316-325), 260. 



Bull-head, v. Catfish. 



Burkhardt, R., 128; phylogenetic 

 table of, compared, 282. 



Butrinus, heart, conus and bulbus ar- 

 teriosus, 258 (Fig. 323) ; compari- 

 son tables of, 260. 



Calamoichthys, swim-bladder of, 22 



