- The Western Narrow-mouth Toad, scientifically known as Gastrophryne olivacea, is a small, terrestrial frog - Although commonly referred to as a "toad", it is actually a species of frog from the Microhylidae family, which are known as narrow-mouthed toads ... the "toad" designation likely comes from its terrestrial nature, as opposed to being primarily aquatic like some other frogs - Small, plump frogs with a pointed snout and a narrow head that helps them burrow - Smooth, moist skin - Coloration varies, but they are typically gray, tan, or olive tan, sometimes with small black spots ... a characteristic fold of skin is located across the back of their head, behind the eyes - Adults are typically 7/8 to 1-½ inches in length, with females being larger than males - They prefer grasslands, rocky and wooded hillsides, and areas around the edges of marshes - They are secretive and spend most of their time hidden in loose soil, under rocks, logs, or other objects ... kn...