of Fishes, [182]
Skull, composition of, [206];
development, [206];
Scyllium canicula, [207], [208];
Salmo salar, [211], [212], [213], [214];
Cyclostomata, [216] f.;
Petromyzon marinus, [216] f., [217];
Bdellostoma, [220] f., [220], [221];
Elasmobranchii, [222] f.;
Notidanus cinereus, [222];