Meristogenys macrophthalmus

Meristogenys macrophthalmus is a species of frog in the family Ranidae. It is endemic to Sarawak in northern Borneo (Malaysia) and is only known from its type locality in the Bintulu District.[2][4] The specific name macrophthalmus is derived from the Greek words macros (="large") and ophthalmos (="eye") and refers to the large eyes of this frog.[3] Common names Matsui's Borneo frog,[2] large-eyed torrent frog,[1] and big-eyed torrent frog have been coined for it.[5]

Meristogenys macrophthalmus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Ranidae
Genus: Meristogenys
Species:
M. macrophthalmus
Binomial name
Meristogenys macrophthalmus
(Matsui, 1986)
Synonyms[2]

Amolops macrophthalmus Matsui, 1986[3]

Description

This species is only known from the holotype, which is an adult male measuring about 37 mm (1.5 in) in snout–vent length.[3][4] The body is moderately stout. The snout is somewhat blunt. The eyes are large (diameter 6.5 mm (0.3 in)). The tympanum is distinct and also relatively large. The fingers and the toes bear round discs; the toes are fully webbed. Skin is shagreened above. There is a low, glandular dorsolateral fold. The flanks are coarsely granular, the throat smooth, and the venter rugose. Coloration of living animals is unknown; the preserved specimen is grayish-brown dorsal with some indistinct markings. The upper lip is whitish. The limbs have crossbars dorsally. The underside is whitish.[3]

Habitat and conservation

Meristogenys macrophthalmus live primary, hilly, lowland rainforest. Breeding takes place in streams. It is threatened by habitat loss (clear-cutting).[1]

Type locality in Malaysian Borneo.
Type locality in Malaysian Borneo.
Meristogenys macrophthalmus is only known from the Bintulu District in Sarawak (Malaysia)

References
  1. IUCN SSC Amphibian Specialist Group (2019). "Meristogenys macrophthalmus". IUCN Red List of Threatened Species. 2019: e.T58372A96176264. doi:10.2305/IUCN.UK.2019-1.RLTS.T58372A96176264.en. Retrieved 14 November 2021.
  2. Frost, Darrel R. (2018). "Meristogenys macrophthalmus (Matsui, 1986)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 28 July 2018.
  3. Matsui, Masafumi (1986). "Three new species of Amolops (Amphibia, Anura, Ranidae)". Copeia. 1986 (3): 623–630. doi:10.2307/1444943. JSTOR 1444943.
  4. Inger, Robert F. & Stuebing, Robert B. (2009). "New species and new records of Bornean frogs (Amphibia: Anura)" (PDF). Raffles Bulletin of Zoology. 57 (2): 527–535. Archived 2016-03-04 at the Wayback Machine
  5. Haas, A.; Das, I. & Hertwig, S.T. (2017). "Meristogenys macrophthalmus (Big-eyed Torrent Frog)". Frogs of Borneo. Retrieved 28 July 2018.
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