HISTORY.
5
1. With four limbs: Seals, Hippopotamus, Beaver, Otter, and other aquatic Mammalia.
2. With two limbs: Mermaids, etc.
C. Oviparous Amphibians (=Reptiles and Frogs).
D. Viviparous Cartilaginous fishes.
1. Of an oblong form (=Sharks).
2. Of a flat form (=Rays and Lophius).
E. Oviparous Cartilaginous fishes (=Sturgeons and Silurus).
F. Oviparous Cetaceans, with spines instead of bones (=large marine fishes, like the Thunny, Sword-fish, Sciænoids, Bass, Gadoids, Trachypterus).
II. Spinous Oviparous fishes of a flat form (=Pleuronectidæ).
III. Fishes of a high form, like Zeus.
IV. Fishes of a snake-like form (=Eels, Belone, Sphyræna).
V. Small Oviparous, spinous, scaly, marine fishes.
1. Pelagic kinds.
2. Littoral kinds.
3. Kinds inhabiting rocky localities.
VI. Fluviatile and Lacustrine fishes.
Salviani.