The Peterson field guide series

Describes more than 200 species of salamanders, frogs, toads, turtles, lizards, and snakes.

Comprehensive, thoroughly illustrated guide to the collection, preservation and study of over five hundred families of North American insects.

Describes 380 species of North American mammals, some with illustrations, and gives all the information necessary to identify them--size, weight, color, markings, and habits.

Nearly "every species of frog, toad, salamander, snake lizard, turtle, alligator and crocodile found in eastern North America is catalogued with over 1,100 illustrations, more than 400 of them in full color. Identification characteristics, habitat, ecology, and natural history of each species are noted, and there is advice on the adoption of reptiles and amphibians as pets."