Nyctimystes daymani

Nyctimystes daymani, also known as the Dayman big-eyed treefrog, is a species of frog in the family Pelodryadidae,[3] also treated as the subfamily Pelodryadinae in the family Hylidae.[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]

Nyctimystes daymani

Data Deficient  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Pelodryadidae
Genus: Nyctimystes
Species:
N. daymani
Binomial name
Nyctimystes daymani
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)

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
  1. Richards, S. & Zweifel, R. (2004). "Nyctimystes daymani". IUCN Red List of Threatened Species. 2004: e.T55768A11362595. doi:10.2305/IUCN.UK.2004.RLTS.T55768A11362595.en. Retrieved 18 December 2017.
  2. Zweifel, Richard G. (1958). "Results of the Archbold Expeditions. No. 78. Frogs of the Papuan hylid genus Nyctimystes". American Museum Novitates. 1896: 1–51.
  3. 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.
  4. "Hylidae". AmphibiaWeb. University of California, Berkeley. 2019. Retrieved 1 January 2019.
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