A new species of the genus Xenophrys (Anura: Megophryidae) from northern Thailandстатья
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Дата последнего поиска статьи во внешних источниках: 20 декабря 2019 г.
Аннотация:A new species, Xenophrys angka sp. nov. is described based on a series of specimens collected from Doi Inthanon, Chiang Mai Province, northern Thailand. The new species was previously confused with X. minor and can be distinguished from other known congeners by molecular divergence in the mitochondrial 16S rRNA gene and a combination of the following characters: (1) small body size, adult SVL 31.2–32.1 mm in males (n = 2), 37.5–39.2 mm in females (n = 4); (2) tympanum distinct and circular; (3) vomerine ridges indistinct and vomerine teeth absent; (4) tongue heart-shaped, not notched posteriorly; (5) supratympanic fold distinct, extending from the posterior corner of eye to shoulder; (6) webbing between toes rudimentary; (7) lateral fringes on fingers and toes absent; (8) tibio-tarsal articulation reaching the area between eye and snout tip; (9) nuptial pads present on finger I; (10) subarticular tubercles present on the base of fingers I–II, but absent on fingers III–IV; (11) subarticular tubercle present at the base of toes I, absent on toe II–IV; (12) the heels meeting or overlapping when the tibias positioned at right angle to the body axis; (13) inner metatarsal tubercle big, outer metatarsal tubercle absent; (14) protruding projection posterior to cloaca of males present; (15) dorsal surface light brown with a complete dark brown interorbital triangle with light blotch in the middle and two distinct thin opposing “V”-shaped reddish glandular ridges with ridge on dorsum; (16) orange coloration of groin contrasting with surrounding regions on males; and (17) inner metacarpal tubercle and outer metatarsal tubercle distinct reddish color. To date, the new species has only been found at its type locality in stream areas in montane evergreen broadleaf forests on elevations 1800–2200 m a.s.l. The new species is assigned to the subgenus Panophrys. At present, the genus Xenophrys contains 66 species, of which 8 occur in Thailand. In addition, results of our phylogenetic analyses indicated that X. latidactyla should be regarded as a junior synonym of X. palpebralespinosa.