INDEX 
Hydrolagus colliei, general anatomy 
of, 100 (Fig. 104), 110. 
HYPERORARTIA, 62. 
IcHTHYOMI, in classification, 8. 
Innes, W., 149. 
Integument, v. Shark, sense organs, 
etc. . 
Intestine, v. Digestive tract. 
Ischyodus, 103 (Fig. 106); mandibular 
of, 106 (Figs. 111, 112), 112. 
Jaekel, O., 92, 113. 
Janassa, 86. 
Jaws of fishes, 24, 27; of Port Jackson 
shark, 24 (Fig. 27), 27; table of 
relations of, 254 (Figs. 310-315), 
256, 257. 
Journal of Morphology, quoted, 51 
note, 160. 
Kepler, W., 130. 
Klaatsch, phylogenetic table of, com- 
pared, 282. 
Kner, 82. 
Kreft, 125. 
Kupffer, K. v., 187 note, 189, 222. 
Labrax lineatus, v. Bass. 
_ Lemargus, shagreen denticle of, 24 
(Fig. 21), 25; described, 90 (Fig. 
96 B); breeding habits of, 183 and 
Lagocephalus, description of ZL. levi- 
gatus, 176 (184 A). 
Lamna, 89, 90 (Fig. 96). 
Lamprey, classified, 8; metamerism 
in, 14-16; gills of, 17; v. Petromy- 
zon, Cyclostomes, etc. 
Lampreys, v. Cyclostomes, etc.; com- 
parison table of the early develop- 
ment of, 280, 281. 
Lankester, E. R., 66. 
Larva, v. Fishes, larval development 
of. 
Lateral line, 48-53 (Figs. 61-68); of 
Chimzroids and shark, 114; in Coc- 
costeus, 135. 
293 
Lepidosiren, in classification, 8; swim- 
bladder of, 22 (Fig. 18); account 
of, 125 (Fig. 129), 126; swim- 
bladder, tables of, 264, 265 (Fi ig. 
18). 
Lepidosteus, in classification, 8; an- 
tiquity of, 9, 166 (Fig. 171 A); 
swim-bladder of, 21, 22 (Fig. 14); 
ganoid dermal plates of, 24, 25 (Fig. 
24); especial interest of gar-pike in 
connecting the Ganoids with the 
Crossopterygians, 159; gar-pike, Z. 
platystomus, described,159-160 ( Fig. 
157); eggs and breeding habits of, 
181 (Fig. 193), 185; fertilization 
of, 187; development of egg of, 203 
(Figs. 265-268), 207; heart, conus 
and bulbus arteriosus, 258 (Fig. 
322); comparison tables of heart, 
etc., 260; gills, spiracle, gill rakers, 
and opercula, tables, 261; digestive 
tract, tables, 263; swim-bladder, 
tables, 264, 265 (Fig. 14); genital 
system, tables, 266; excretory sys- 
tem and urinogenital ducts, 271. 
Leptolepis, 165; L. sprattiformis, 165 
(Fig. 170). 
Leydig, F.%51 note. 
Limb structure in Dipnoans, 129. 
List of names of authors and of their 
works, 231-251. 
List of the derivations of proper 
names, 227-230. 
LoPHOBRANCHH, 166 (Fig. 171 A), 
178. 
Lung-fishes, v. Dipnoans. 
Lungs, v. Swim-bladder. 
Mackerel shark, v. Zamna. 
Mackerel, Spanish, movement and fins 
of, 2, 3 (Fig. 3); front view of, 4 
(Fig. 4); lines of, 5 (Fig. 6). 
Macropetalichthys, eyes of, 135. 
Manatee, fish-like form of, 6. 
Mandibles of Chimzeroids, 113; articu- 
lation of in Dipnoans, 129. 
Mantis, or devil-ray, v. Dicerodatis. 
Marey, 2. 
