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Class III. Reptilia :— 
1. Crocodi/ia. —Alligators, crocodiles, caiman, &c. 
2. Che Ionia. —Turtles, terrapins, tortoises. 
. Rhynchoccphalia. —Tuatera “lizard.” 
. Lacertilia. —Lizards, geckos, chameleons, &c. 
5. Ophidta. —Snakes. 
Class IV. Batrachia :— 
1. Ecaudata. —Frogs, toads, tree toads. 
2. Caudata. —Salamanders, newts, siren, proteus, &c. 
3. Apoda. —Coecilians, “burrowers, without legs.” 
