Nyctimystes montanus

Nyctimystes montanus (common name: mountain big-eyed tree frog) is a species of frog in the subfamily Pelodryadinae.[2] It is endemic to the Arfak Mountains, located in the Bird's Head Peninsula of northwestern New Guinea.[1][2] This species is only known from its type locality ("Hatam sul Monte Arfak").[1][2] There are no records of this species after it was described in 1878,[1][4] perhaps because of lack of surveys.[1]

Mountain big-eyed tree frog
Holotype of Nyctimystes montanus. Illustration from the original species description by Wilhelm Peters and Giacomo Doria (1878).
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Hylidae
Genus: Nyctimystes
Species:
N. montanus
Binomial name
Nyctimystes montanus
(Peters and Doria, 1878)
Synonyms[2]

Hyla (Litoria) montana Peters and Doria, 1878[3]
Nyctimystes montana (Peters and Doria, 1878)
Litoria montana (Peters and Doria, 1878)

Description

The holotype—and the only known specimen[4]—is an adult male collected by Odoardo Beccari in 1875. It measures 62 mm (2.4 in) in snout–vent length. The tympanum is small. The skin of dorsum is smooth.[3] It resembles Nyctimystes kuduki but has a snout that is distinctly truncate at the tip (angular in N. kuduki). The palpebral venation has many horizontal connections (other Nyctimystes have only vertically oriented veins).[4]

Habitat and conservation

The ecology and current population status of this species are essentially unknown. It is a montane frog that probably lives in streams in tropical rainforest. Threats to it are unknown. The type locality is within the Arfak Mountains National Park.[1]

References
  1. IUCN SSC Amphibian Specialist Group (2020). "Nyctimystes montanus". IUCN Red List of Threatened Species. 2020: e.T55776A152537765. doi:10.2305/IUCN.UK.2020-3.RLTS.T55776A152537765.en. Retrieved 16 November 2021.
  2. Frost, Darrel R. (2017). "Nyctimystes montanus (Peters and Doria, 1878)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 20 March 2017.
  3. Peters, W.; Doria, G. (1878). "Catalogo dei rettili e dei batraci raccolti da O. Beccari, L. M. D'Albertis e A. A. Bruijn nella sotto-regione Austro-Malese". Annali del Museo Civico di Storia Naturale di Genova (in Italian). 13: 323–450.
  4. Richards, Stephen J. (2007). "A new species of Nyctimystes (Anura, Hylidae) from Papua New Guinea and comments on poorly-known members of the genus". Phyllomedusa. 6 (2): 105–118. doi:10.11606/issn.2316-9079.v6i2p105-118.
  • "Hylidae". AmphibiaWeb. University of California, Berkeley. 2017. Retrieved 20 March 2017.
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