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In early spring the females nest on land, along the banks of small ponds. After the 4–6 week embryonic period, the larvae hatch and make their way to the adjacent pond. Four-toed salamanders undergo a relatively short aquatic larval period, when compared to other species of the same family, ranging between 3 and 6 weeks. [3] [4] [6]
Several species of salamanders are endemic to specific cave systems in Texas. Due to their small habitat and specified role, many are threatened or endangered. [ 126 ] [ 127 ] In 2019, researchers associated with the University of Texas Austin and Texas Parks and Wildlife announced the discovery of an additional three species of spring and cave ...
Plethodon is part of the family Plethodontidae (lungless salamanders) and the subfamily Plethodontinae.The genus Plethodon can be divided into two subgenera: the nominal subgenus Plethodon, which includes up to 49 eastern species (the bulk of diversity in the genus), and the subgenus Hightonia, [5] which includes 9 species native to the western part of North America.
Gyrinophilus, the spring salamanders, are a genus of salamanders in the family Plethodontidae. The genus is endemic to the Appalachian Mountains of the eastern United States and Canada. [ 2 ] Their habitat is under rocks in cold, clear springs, in wet caves, and in streams in forested areas.
Northern spring salamander: Gyrinophilus porphyriticus porphyriticus (Green, 1827) Abundant Nominate subspecies: Statewide except southeast Four-toed salamander: Hemidactylium scutatum (Tschudi, 1838) Abundant Statewide Eastern red-backed salamander: Plethodon cinereus (Green, 1818) Abundant Statewide Northern ravine salamander: Plethodon ...
San Marcos River, located in Hays County, Texas, is the only known location of the San Marcos salamander. The population estimate in 1973 was about 20,880 salamanders living in the uppermost reaches of Spring Lake. [8] An estimate in 1993 suggested about 30,451 salamanders across all ranges of Spring Lake and up to 150 metres (490 ft) downstream.
Four-toed salamander, Hemidactylium scutatum [24] [25] The four-toed salamander is rare in Vermont. [26] Northern dusky salamander, Desmognathus fuscus [27] [28] Northern two-lined salamander, Eurycea bislineata [29] [30] Spring salamander, Gyrinophilus porphyriticus [31] [32] The spring salamander is uncommon (vulnerable) in the state of ...
The toes of the Coeur d'Alene salamander are shorter than those of the long-toed salamander, which aids in distinguishing the two species. The eggs of the Coeur d'Alene salamander have a unique appearance, as well. They are not pigmented and occur in grape-like clusters, attached by a single thread.