The spring salamander (Gyrinophilus porphyriticus) is a species of salamander in the family Plethodontidae It is found in Canada and the United States. The generic name, Gyrinophilus, means "tadpole lover" and refers to the long period of time it spends as a gilled larva before maturing. The specific name, porphyriticus, is Latin from Greek, meaning the color of porphyry, a purple stone, and this salamander has also been called the purple salamander. Its natural habitats are temperate forests, rivers, swamps, freshwater marshes, freshwater springs, inland karsts, and caves. In addition to insects, worms, and other small invertebrates, the fairly large spring salamander may also consume smaller stream dwelling salamanders such as two-lined and dusky salamanders. In fact, they are considered salamander specialist in some areas such as the North Carolina Mountains, where 50% of their diets consist of other salamanders including their own kind Although deforestation is a potential threat, the spring salamander occurs in many protected areas and is not listed as threatened in the IUCN Red List. Description Like all members of the family Plethodontidae these salamanders have a nasolabial groove. The subspecies G. p. porphyriticus and G. p. duryi can be long. The record length is . The light line from eye to nostril is bordered below by gray pigment, but the markings are not always conspicuous. The dorsal coloration varies from salmon or light brownish to pink or reddish. The ground color has a cloudy appearance, and the darker markings are vague. The subspecies G. p. danielsi and G. p. dunni can be . The record length is . Adults reach larger sizes at higher elevations as a consequence of delay in development to maturity after metamorphosis in high-level populations. The white line from eye to nostril, bordered below by a conspicuous black or dark brown line, is distinctive. There also may be a dark line above the white line, often conspicuous. The dorsal coloration can be clear reddish, salmon, or orange-yellow marked with black or brown spots or flecks. 17 to 19 costal grooves. Larvae are aquatic and have stream-type morphology. Juveniles are typically more brightly colored than adults. Habitat This species is found in cool springs and mountain springs, but is also likely to be found in any wet depression beneath logs, stones, or leaves in the surrounding forest. They require being in areas that provide them with adequate oxygen and moisture because they