Montana is home to 14 amphibian species and 20 species of reptiles. None of the species are endangered or threatened, although some are classified as species of concern by the Montana Department of Fish, Wildlife and Parks. Amphibians Tiger salamander The tiger salamander (Ambystoma tigrinum) is a species of mole salamander. Tiger salamanders are large, with a typical length of 6–8 inches. They can reach up to 14 inches in length, particularly neotenic individuals. Adults are usually blotchy with gray, green, or black, and have large, lidded eyes. They have short snouts, thick necks, sturdy legs, and long tails. Their diet consists largely of small insects and worms, though it is not rare for an adult to consume small frogs and baby mice. In Montana, the salamander is widespread in a great variety of habitats east of the continental divide. It breeds in ponds and fishless lakes. Long-toed salamander The long-toed salamander (Ambystoma macrodactylum Baird 1849, Salish: šl̓šl̓če) is a mole salamander in the family Ambystomatidae. This species, typically 4.1–8.9 cm (– in) long when mature, is characterized by its mottled black, brown and yellow pigmentation, and its long outer fourth toe on the hind limbs. The distribution of the long-toed salamander is primarily in the Pacific Northwest, with an altitudinal range of up to . It lives in a variety of habitats including temperate rainforests, coniferous forests, montane riparian zones, sagebrush plains, red fir forests, semi-arid sagebrush, cheatgrass plains, and alpine meadows along the rocky shores of mountain lakes. It lives in slow-moving streams, ponds and lakes during its aquatic breeding phase. The long-toed salamander hibernates during the cold winter months, surviving on protein energy reserves stored in the skin and tail. In Montana, the salamander is found year-round in the western portion of the state. Idaho giant salamander The Idaho giant salamander (Dicamptodon aterrimus) is one of three closely related species to this taxon: D. ensatus, (California giant salamander), D. copei (Cope's giant salamander) and D. tenebrosus (coastal giant salamander) also known as the (Pacific giant salamander). The Idaho giant salamander is the darkest and most intricately blotched of the giant salamanders. Varying between brown, purple, tan, gray, and a copperish color, Idaho giant salamanders are large and robust predators. Tiger salamanders and Idaho giant salamanders have superficial resemblance pertaining to size and shape, but the costal grooves and foot tubercles are significantly different between the two species.