Field Guide

Reptiles and Amphibians

Showing 1 - 10 of 24 results
Media
Photo of a Rocky Mountain toad in lawn grass.
Species Types
Scientific Name
Anaxyrus woodhousii woodhousii
Description
The Rocky Mountain toad has a number of irregular dark brown or black spots on the back and a white belly. It occurs in the Missouri River floodplain, mostly from the central to the far northwestern parts of the state.
Media
Image of fowler's toad
Species Types
Scientific Name
Anaxyrus fowleri
Description
Fowler's toad is the common toad of gravel and sand bars along our many Ozark streams and rivers. It is also the most common toad in the Bootheel lowlands.
Media
Image of an american toad
Species Types
Scientific Name
Anaxyrus americanus americanus (formerly Bufo americanus)
Description
American toads are well-known and occur statewide. Missouri has two subspecies: the Eastern American toad in the northern half, and the dwarf American toad in the southern half.
Media
Spring Peeper
Species Types
Scientific Name
Pseudacris crucifer
Description
The voices of spring peepers are a true announcement that winter is ending. These small, slender frogs can be several overall colors, but seeing an X on the back is a good way to ensure your identification.
Media
Image of an upland chorus frog
Species Types
Scientific Name
Pseudacris feriarum
Description
The upland chorus frog is a small gray or tan frog with dark dorsal stripes that are narrow or broken into a series of dashes or spots. In Missouri, it occurs only in the southeastern portion, including the southeastern Ozark Highlands as well as the Mississippi Alluvial Basin.
Media
Image of American Bullfrog
Species Types
Scientific Name
Lithobates catesbeianus (formerly Rana catesbeiana)
Description
The American bullfrog is Missouri’s largest frog. This common species is easy to hear on warm nights when the males call a deep, sonorous “jug-a-rum, jug-a-rum” that can be heard from half a mile away.
Media
Image of a green frog
Species Types
Scientific Name
Lithobates clamitans (formerly Rana clamitans)
Description
The green frog looks similar to a bullfrog but is smaller and has a ridge of skin along the sides of the back that is not found on bullfrogs. It is a game animal in Missouri.
Media
Image of a western narrow-mouthed toad
Species Types
Scientific Name
Gastrophryne olivacea
Description
The western narrow-mouthed toad has a plump body, short legs, uniform color, small, pointed head, and a fold of skin across the back of the head. The general color is gray, tan, or olive tan. In our state is is reported from far western Missouri and east along the Missouri River as far as the center of the state.
Media
Image of an eastern narrow-mouthed toad
Species Types
Scientific Name
Gastrophryne carolinensis
Description
The eastern narrow-mouthed toad is a plump little amphibian that is seldom seen. There is a fold of skin behind its narrow, pointed head. It occurs in the southern half of the state.
Media
Image of a plains spadefoot
Species Types
Scientific Name
Spea bombifrons
Description
The plains spadefoot is a stout, toadlike amphibian with large, protruding eyes, vertically oval pupils, short legs, and large feet. There is a raised area between the eyes. It occurs in counties along the Missouri River.
See Also

About Reptiles and Amphibians in Missouri

Missouri’s herptiles comprise 43 amphibians and 75 reptiles. Amphibians, including salamanders, toads, and frogs, are vertebrate animals that spend at least part of their life cycle in water. They usually have moist skin, lack scales or claws, and are ectothermal (cold-blooded), so they do not produce their own body heat the way birds and mammals do. Reptiles, including turtles, lizards, and snakes, are also vertebrates, and most are ectothermal, but unlike amphibians, reptiles have dry skin with scales, the ones with legs have claws, and they do not have to live part of their lives in water.