Spotted paddle-tail newt

The spotted paddle-tail newt (Pachytriton brevipes) is an amphibian native to southeastern China; it was named in 1876.[2] A member of the family Salamandridae, it is closely related to the spotless paddle-tail newt (Pachytriton labiatus). The spotted paddle-tail newt lives in streams and is characterized by its long, paddle-shaped tail used for propulsion.

Spotted paddle-tail newt

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Urodela
Family: Salamandridae
Genus: Pachytriton
Species:
P. brevipes
Binomial name
Pachytriton brevipes
(Sauvage, 1876)
Synonyms[2]

Cynops chinensis David, 1875 —homonym of Cynops chinensis Günther, 1859
Triton brevipes Sauvage, 1876 —replacement name

Description

Pachytriton species are stout-bodied, smooth-skinned aquatic newts. Their heads are large and flattened, and they have conspicuous labial folds and short, stubby legs and toes. They breathe through both lungs and skin. P. brevipes ranges from 5.5 to 7.5 in as an adult. It has prominent labial folds, long digits, and smooth skin, which differs from the tuberculate skin typical of newts.

The head, back, and tail of P. brevipes range in color from light brown to a dark chocolate brown and are covered in dark spots. The underbelly color varies considerably, from a very light brown to a solid black. Breeding males may develop bluish-white spots on the tail.

Behavior

Pachytriton spp. are known for their aggressive and territorial behavior, seen mainly in males, but occasionally in females, as well. P. brevipes is an aggressive hunter and feeder. It is carnivorous and will eat worms, insects, and small fish. The breeding behavior of P. brevipes is unknown.

Ecology

Pachytriton brevipes is native to the freshwater streams of southeastern China, and it thrives in cool, clean water high in oxygen. Current distribution is shrinking, most likely due to pollution and human encroachment on habitat. It is almost exclusively aquatic, though it will leave the water if bullied by a more aggressive individual.

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References
  1. Gu Huiqing; Geng Baorong (2004). "Pachytriton brevipes". IUCN Red List of Threatened Species. 2004: e.T59454A11944711. doi:10.2305/IUCN.UK.2004.RLTS.T59454A11944711.en.
  2. Frost, Darrel R. (2017). "Pachytriton brevipes (Sauvage, 1876)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 29 July 2017.
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