INDEX 
_ works, 249-251; comparison tables 
of the skeleton of, 253; heart, conus 
and bulbus arteriosus, tables, 258 
(Figs. 324, 325), 260; digestive tract, 
tables, 262 (Fig. 331), 263; urino- 
genital ducts and external openings, 
267 (Fig. 337), and tables, 271; 
circulation in, tables, 269; abdomi- 
nal pores, tables, 271; brain of, 273 
(Fig. 344); central nervous system, 
tables, 275; comparison table of the 
early development of, 280, 281. 
TELEOSTOMES, in classification, 7, 8; 
antiquity of, 9, 10; mouth of, 64 
note; opercular apparatus of, 114; 
tail of, 115; affinities to Arthrodirans, 
136; general description of, 139- 
178 (Figs. 145-185 A); skeleton 
of, 141-143 (Fig. 146); visceral 
parts of, 143; contrasted with 
Ganoids, 144 ( Fig. 147); Teleosts 
and Ganoids merged into one group 
by Prof. Owen, 146; descent of, 
146; affinities with the Dipnoans 
generally admitted, 146; Rabl de- 
tives them from a selachian stem, 
146; Beard and Woodward as to 
their descent, 146; two principal 
subdivisions of, 147; phylogeny, 
scheme of, 165, 166 (Fig. 171 A); 
_ comparison tables of skeleton of, 
253; table of relation of skull, jaws, 
and branchial arches, 257; heart, 
conus and bulbus arteriosus, tables, 
260; gills, spiracle, gill rakers, and 
tables, 261; digestive 
tract, tables, 263; swim-bladder, 
tables, 264, 265 (Fig. 13); genital 
system, tables, 266; sense organs, 
tables, 277; integument and integu- 
mentary sense organs, tables, 279. 
Telescope-fish, v. Carassius. 
Terrell, J., 130. 
Thacher, J., 40. 
Thiolliére, 58. 
Thrasher shark, v. A/opias. 
Tissues, cellular elements of, in Dip- 
noans, 129. . oes 
299 
Titanichthys, pineal foramen of, 55, 
56, 135; size and localities of, 130; 
lip-like mandibles of, 136; mandi- 
bles of 7. clarki, 136, 137 (Fig. 
139). 
Torpedo, 95 (Fig. 102). 
Trachosteus, jaws of, 136, 137 (Fig. 
140). 
Transactions of Edinburgh Society, 
quoted, 70. 
Traquair, R. H., 65, 68, 70, 71, 78, 
128, 130, 132, 156, 157, 159. 
Trygon, dental plates of jaw of, 24 
(Fig. 29); fin spine of, 28, 29 (Fig. 
Turner, W., 217. 
Undina, 147, U. gulo, 154 
(Fig. 156 4). 
United States Fish Commission Re- 
ports, quoted, 3, 89, 90, 92, 94, 95, 
155, 160, 162, 163, 171, 173-177. 
United States National Museum, Pro- 
ceedings of, quoted, 103. 
Urinogenital system, comparison tables 
of, 266, 267 (Figs. 332-337), 270, 
271. 
Urogymnus, shagreen of, 24 (Fig. 23). 
153; 
Ventral plates of Coccosteus decipiens, 
132 (Fig. 132). 
Vertebral axis of lung-fishes, resem- 
blance to Elasmobranchs, 128. 
Vienna collection, 149 note. 
Visceral characters, resemblance be- 
tween lung-fishes and Elasmo- 
branchs, 128; of Teleost, 143; of 
Ganoids, 145. 
Walcott, 65. 
Ward, H. A., 75. 
Whale, fish-like form of, 6. 
Whale, humpback, numerical lines of, 
5 (Fig. 7). 
Whiteaves, 152. 
Whitman, C. O., 187 note. 
Wiedersheim, R., 40, 113. 
Willey, A., 16. 
