Kurixalus absconditus

Kurixalus absconditus is a species of frog in the family Rhacophoridae.[2][3][4] It is endemic to West Kalimantan, in the Indonesian part of Borneo, and is only known from its type locality near the village of Piasak; it is likely to occur more widely.[2] The specific name absconditus is Latin for "disguised", "concealed", or "hidden", and refers to this species remaining "undetected" within the Kurixalus appendiculatus group.[1] Common name Piasak-frilled swamp treefrog,[1] also spelled Piasak frilled swamp tree frog,[4] has been coined for it.

Kurixalus absconditus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Rhacophoridae
Genus: Kurixalus
Species:
K. absconditus
Binomial name
Kurixalus absconditus
Mediyansyah, Hamidy, Munir, and Matsui, 2019[1]
Kurixalus absconditus is only known from near Piasak, West Kalimantan, Borneo

Description

The type series consists of one adult male measuring 27 mm (1.1 in) and two juveniles 17–20 mm (0.7–0.8 in) in snout–vent length. The head is longer than it is wide. The snout has pointed tip. The tympanum is distinct but small. The supratympanic fold is present. The limbs are slender. The finger and toe tips are expanded into round discs; those of fingers are larger than the toe ones. Finger webbing is poorly developed while toe webbing is moderately developed. The upper eyelids have a series of rounded small tubercles. The dorsum is brown with green speckles and a sparse and disjointed of dark brown saddle-shaped mark. The flanks are brown with few green speckles. The groin is whitish. The iris is bright gold and has distinct black reticulation and a black scleral ring.[1]

Male advertisement call, females, and tadpoles of this species are not known.[1]

Habitat and conservation

The type series was collected from a shrub swamp habitat close to secondary swamp forest at an elevation of 50 m (160 ft) above sea level. It shared this habitat with the frogs Amnirana nicobariensis, Chalcorana raniceps, Hylarana erythraea, Polypedates colletti, Pulchrana baramica, and Limnonectes paramacrodon. Individuals of Kurixalus absconditus were found clinging to a tree trunk and perched on leaves some 0.70–1.9 m (2–6 ft) above the ground.[1]

This species is known from a small number of specimens from a single locality.[1][2] As of late 2020, it had not yet been assessed for the IUCN Red List of Threatened Species.[5]

References
  1. Mediyansyah, Mediyansyah; Hamidy, Amir; Munir, Misbahul & Matsui, Masafumi (2019). "A new tree frog of the genus Kurixalus Ye, Fei & Dubois, 1999 (Amphibia: Rhacophoridae) from West Kalimantan, Indonesia". Treubia. 46: 51–72. doi:10.14203/treubia.v46i0.3790.
  2. Frost, Darrel R. (2020). "Kurixalus absconditus Mediyansyah, Hamidy, Munir, and Matsui, 2019". Amphibian Species of the World: an Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001. Retrieved 8 November 2020.
  3. "Rhacophoridae". AmphibiaWeb. University of California, Berkeley. 2020. Retrieved 8 November 2020.
  4. Haas, A.; Das, I. & Hertwig, S.T. (2020). "Kurixalus absconditus (Piasak Frilled Swamp Tree Frog)". Frogs of Borneo – The frogs of East Malaysia and their larval forms. Retrieved 8 November 2020.
  5. "IUCN Red List of Threatened Species". Retrieved 8 November 2020.
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