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Not all aquatic salamanders are considered newts, however. More than 100 known species of newts are found in North America, Europe, North Africa and Asia. Newts metamorphose through three distinct developmental life stages: aquatic larva, terrestrial juvenile (eft), and adult.
Salamandridae is a family of salamanders consisting of true salamanders and newts. Salamandrids are distinguished from other salamanders by the lack of rib or costal grooves along the sides of their bodies and by their rough skin. Their skin is very granular because of the number of poison glands. They also lack nasolabial grooves.
Three-lined salamander (Eurycea guttolineata) - Widespread east of the Mississippi River, but not recorded west of it. [1] Long-tailed salamander (Eurycea longicauda) - Some gene flow with the dark-sided salamander (Eurycea melanopleura) around Randolph County is reportedly from this species, but this species has not been confirmed in Arkansas. [1]
Family: Salamandridae (true salamanders and newts) Fire salamander, Salamandra salamandra LC; Penibetic salamander, Salamandra longirostris [2] Corsican fire salamander, Salamandra corsica LC ; Alpine salamander, Salamandra atra LC (France, the Alps, and Balkans) Lanza's alpine salamander, Salamandra lanzai VU
Salamanders and newts Fire salamander (Salamandra salamandra) — has bred at least once [citation needed] Alpine newt (Ichthyosaura alpestris) (naturalised) [1] Italian crested newt (Triturus carnifex) [2] Toads Midwife toad (Alytes obstetricans) (naturalised) [3] Yellow-bellied toad (Bombina variegata) — was naturalised but current status ...
Pennsylvania has 41 native species of amphibians, with 23 salamanders and newts, and 18 species of frogs and toads. Of these species, 13 are of special concern, 2 are threatened, 6 are endangered, and 1 species is extirpated.
Seventy-one amphibian species are found in the American state of Texas, including forty-four species of frog and twenty-eight species of salamander. Four species are categorized as endangered by the International Union for Conservation of Nature: the Barton Springs salamander, the Texas blind salamander, the black-spotted newt, and the Houston ...
Salamander diversity is highest in eastern North America, especially in the Appalachian Mountains; most species are found in the Holarctic realm, with some species present in the Neotropical realm. Salamanders never have more than four toes on their front legs and five on their rear legs, [ 3 ] but some species have fewer digits and others lack ...