Theloderma palliatum

Theloderma palliatum (common name: cloaked moss frog) is a species of frog in the family Rhacophoridae. It is endemic to Vietnam and so far only known from the Bidoup Núi Bà and Chư Yang Sin National Parks.[2] This species, together with Theloderma nebulosum, was first found by Australian and Vietnamese scientists in Tay Nguyen in 2011.[3][4]

Cloaked moss frog
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Rhacophoridae
Genus: Theloderma
Species:
T. palliatum
Binomial name
Theloderma palliatum
Rowley, Le, Hoang, Dau, and Cao, 2011
Synonyms[2]

Theloderma chuyangsinense Orlov, Poyarkov, Vassilieva, Ananjeva, Nguyen, Sang, and Geissler, 2012

Description

Adult males measure about 26 mm (1.0 in) in snout–vent length.[4] An adult female, first described as a distinct species, Theloderma chuyangsinense, measures 28 mm (1.1 in) in snout–vent length.[5] The body is relatively slender. The head is slightly longer than it is wide. The snout is bluntly truncate in dorsal view and truncate in profile. The tympanum is distinct. Both finger and toe discs are well-developed, but the finger discs are larger than the toes discs . The fingers are unwebbed whereas the toes have basal webbing. The dorsum is weakly rugose with sparsely scattered minute, pearly asperities. The ventral surface of thighs and belly are coarsely granular, while the chest and throat are smooth. In specimens from the Bidoup Núi Bà National Park, the dorsum is pale coppery brown with distinct dark warm brown markings, which are more distinct at night.[4] The specimen from Chư Yang Sin National Park had pale-yellow to light straw-brown dorsum, with dark-brown blotches and spots of various sizes and shapes.[5]

Habitat

Theloderma palliatum is known from montane evergreen forests at elevations of 1,500–2,000 m (4,900–6,600 ft) above sea level.[4][5] Specimens have been recorded sitting on leaves 1–2 metres above ground and on the ground.[4] Some specimens were collected near streams while others were found further away.[4][5] It is rare in the Bidoup Núi Bà National Park, with only three specimens collected during 20 surveys conducted over a three-year period.[4] However, the apparent rarity of the species could simply be caused by poor detectability associated with its small size and arboreal habits.[4][5]

Conservation

Habitat loss and modification, caused by aquaculture, agriculture (coffee), infrastructure, and harvest of forest products, are occurring inside the Bidoup Núi Bà National Park. As a consequence, this species is believed to be declining.[1]

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References
  1. IUCN SSC Amphibian Specialist Group (2017). "Theloderma palliatum". IUCN Red List of Threatened Species. 2017: e.T48100463A48100482. doi:10.2305/IUCN.UK.2017-2.RLTS.T48100463A48100482.en.
  2. Frost, Darrel R. (2017). "Theloderma palliatum Rowley, Le, Hoang, Dau, and Cao, 2011". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 7 March 2017.
  3. Rowley, J. (16 November 2011). "Two new species of moss frog discovered". Australian Museum.
  4. Rowley, Jody J. L.; D. T. T. Le; H. D. Hoang; V. Q. Dau & T. T. Cao (2011). "Two new species of Theloderma (Anura: Rhacophoridae) from Vietnam". Zootaxa. 3098: 1–20.
  5. Orlov, Nikolai L.; N. A. Poyarkov, Jr.; A. B. Vassilieva; N. B. Ananjeva; T. T. Nguyen; N. V. Sang & P. Geissler (2012). "Taxonomic notes on rhacophorid frogs (Rhacophorinae: Rhacophoridae: Anura) of southern part of Annamite Mountains (Truong Son, Vietnam), with description of three new species". Russian Journal of Herpetology. 19 (1): 23–64.
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