Nyctimystes daymani

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Nyctimystes daymani
Conservation status
Least Concern (IUCN 3.1)^[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	Anura
Family:	Hylidae
Genus:	Nyctimystes
Species:	N. daymani
Binomial name
*Nyctimystes daymani* Zweifel, 1958^[2]

Nyctimystes daymani is only known with certainty from Mount Dayman in the Milne Bay Province in Papua New Guinea
Synonyms^[3]
Litoria daymani (Zweifel, 1958)

Nyctimystes daymani, also known as the Dayman big-eyed treefrog, is a species of frog in the subfamily Pelodryadinae.^[3]^[1]^[4] It is endemic to Papua New Guinea and known from its type locality, Mount Dayman in the Milne Bay Province, easternmost mainland New Guinea. Records from further west are uncertain.^[1]^[3]

Description

Male Nyctimystes daymani grow to a snout–vent length of at least 42 mm (1.7 in). The snout is relatively long and narrow. The palpebral reticulum has very distinct, near-vertical veins. The tympanum is small but distinct and the supratympanic fold is strongly developed. The canthus rostralis is distinct. The outer fingers are about half-webbed, whereas the outermost toe is webbed to the base of the disc. The legs are comparatively short. Colouration is variable. Preserved specimens may be dorsally dark brown, with pale brown patches spotted with dark brown; some specimens are gray-brown and virtually patternless, while others are brown with white spots. Males have a vocal sac.^[2]

Habitat and conservation

The type series was collected at the banks of a rocky stream in the forest at about 700 m (2,300 ft) above sea level.^[2] Breeding probably occurs in torrential streams where the tadpoles develop.^[1]

This species has probably not been observed after it was first described. The threats to it are unknown.^[1]

References

^ ^a ^b ^c ^d ^e IUCN SSC Amphibian Specialist Group (2020). "Nyctimystes daymani". IUCN Red List of Threatened Species. 2020: e.T55768A152459630. doi:10.2305/IUCN.UK.2020-3.RLTS.T55768A152459630.en. Retrieved 17 November 2021.
^ ^a ^b ^c Zweifel, Richard G. (1958). "Results of the Archbold Expeditions. No. 78. Frogs of the Papuan hylid genus Nyctimystes". American Museum Novitates (1896): 1–51. hdl:2246/4567.
^ ^a ^b ^c Frost, Darrel R. (2018). "Nyctimystes daymani Zweifel, 1958". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 1 January 2019.
^ "Hylidae". AmphibiaWeb. University of California, Berkeley. 2019. Retrieved 1 January 2019.

Taxon identifiers
Nyctimystes daymani	Wikidata: Q3012114 Wikispecies: Nyctimystes daymani ADW: Litoria_daymani AmphibiaWeb: 1326 ASW: Nyctimystes-daymani BioLib: 177432 GBIF: 2427718 iNaturalist: 134388 IRMNG: 10598435 ITIS: 662983 IUCN: 55768

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