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Description

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Large and long-legged, males grow up to 65 mm, females up to 90 mm in body length. Dorsal is olive or grayish brown, sometimes marbled but usually plain with maybe some scattered warts of a darker color. Darker brown cross bars on limbs; sides of head darker color; basically white ventral surface. From behind the eyes to the groins, a pair of raised glandular folds run down the sides of the body. Throat always has dark brown spots which may extend onto the belly. Young frogs have bright yellow lower surfaces of the belly and below hindlimbs; toes are webbed with only one joint on the longest toe (the third) beyond the webbing (Menzies 1975; Zweifel 1980).

Reference

Menzies, J. I. (1987). ''A taxonomic revision of Papuan Rana (Amphibia: Ranidae).'' Australian Journal of Zoology, 35, 373-418.

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Distribution and Habitat

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Found in high elevations throughout most of New Guinea (Zweifel 1980). Prefers streams in hill forest at lower altitudes and moss forests at higher altitudes, open grassy valleys of the highlands, swamps and relatively slow-flowing rivers (Menzies 1987).
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Life History, Abundance, Activity, and Special Behaviors

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Reproduction: Breeds in swamps or still backwaters of rivers. Eggs adhere in single layer to rocks in the water. Tadpoles are brownish with three tooth rows above the mouth and three below and up to 20 mm in body size (Menzies 1975). Call: Males sometimes call in the day during dull weather or at night and like to hide in clumps of sedge, occasionally exposing themselves. They make short series of 3-4 squeaks at long intervals (Menzies 1975). Each note lasts about 0.1 s and has an initial rise in frequency through 500 Hz and a rapid decline through 1 kHz. The frequency range is about 2-3 kHz (Menzies 1987).
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Papurana grisea

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Papurana grisea is a species of true frog. It is known with certainty only from its type locality in the Went Mountains, in the Indonesian province of Papua, New Guinea. Similar frogs are widespread in New Guinea, usually above 1,200 m (3,900 ft) above sea level, as well as on the Seram Island, but their identity is uncertain; they possibly represent another, undescribed species.[1][2][3] Common names Went Mountains frog and Montaen swamp frog have been coined for it.[2]

Names

It is known as akpt or cebs in the Kalam language of Papua New Guinea.[4]

Description

Based on the holotype and another syntopic specimen, adult females measure 83–92 mm (3.3–3.6 in) in snout–vent length. The head is wider than the body and the snout is long and bluntly rounded in dorsal view, almost truncate in lateral view. The tympanum is distinct. The fingers have no webbing whereas the toes are almost fully webbed. The finger tips are flattened and expanded; the toe tips are pointed and bearing discs with circum-marginal grooves. The holotype is bleached, light-tan colored with three narrow bars in the thighs three to four in the shanks. The other specimen is better preserved and has uniform medium brown dorsum, bearing a hing of dark brown canthal stripe and face mask.[3]

Habitat and conservation

Papurana grisea presumably inhabits streams in rainforests. The type locality is at 1,200–1,300 m (3,900–4,300 ft).[1]

References

  1. ^ a b c Kraus, Fred & Allen Allison (2008). "Papurana grisea". IUCN Red List of Threatened Species. 2008: e.T58610A11809842. doi:10.2305/IUCN.UK.2008.RLTS.T58610A11809842.en.
  2. ^ a b c Frost, Darrel R. (2017). "Papurana grisea (Van Kampen, 1913)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 21 September 2017.
  3. ^ a b Kraus, Fred & Allison, Allen (2007). "Taxonomic notes on frogs of the genus Rana from Milne Bay Province, Papua New Guinea". Herpetological Monographs. 21 (1): 33–75. doi:10.1655/06-004.1. JSTOR 40205457. S2CID 86730682.
  4. ^ Bulmer, Ralph N.H. and Michael Tyler. 1968. Karam classification of frogs. Journal of the Polynesian Society 77(4): 621–639.
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Papurana grisea: Brief Summary

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Papurana grisea is a species of true frog. It is known with certainty only from its type locality in the Went Mountains, in the Indonesian province of Papua, New Guinea. Similar frogs are widespread in New Guinea, usually above 1,200 m (3,900 ft) above sea level, as well as on the Seram Island, but their identity is uncertain; they possibly represent another, undescribed species. Common names Went Mountains frog and Montaen swamp frog have been coined for it.

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