Gracixalus nonggangensis Mo, Zhang, Luo, Zhou & Chen, 2013

Luong, Anh Mai, Do, Quyen Hanh, Hoang, Chung Van, Phan, Tien Quang, Nguyen, Truong Quang & Pham, Cuong The, 2022, New records of amphibians from Bac Kan Province, Vietnam, Biodiversity Data Journal 10, pp. 75595-75595 : 75595

Gracixalus nonggangensis Mo, Zhang, Luo, Zhou & Chen, 2013

Materials

Type status: Other material. Occurrence: catalogNumber: IEBR A.4899 ; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Gracixalus nonggangensis; class: Amphibia ; order: Anura ; family: Rhacophoridae ; genus: Gracixalus ; specificEpithet: nonggangensis; scientificNameAuthorship: Mo , Zhang , Luo , Zhou & Chen, 2013; Location : country: Vietnam; countryCode: VN; stateProvince: Bac Kan; locality: Nam Xuan Lac HSCA ; verbatimElevation: 746 m; verbatimLatitude: 22°17.587'N; verbatimLongitude: 105°30.445'E; verbatimCoordinateSystem: WGS84; Event: eventDate: 24April 2021; eventRemarks: collected by H. V. Chung an P. Q. Tien; Record Level: language: en; collectionCode: Amphibia; basisOfRecord: PreservedSpecimen

Description

Size small (SVL 32.9 mm); head longer than wide (HL 12.0 mm, HW 11.8 mm); snout round, smaller than eye diameter (RL 4.6 mm, ED 4.9 mm); nostrils oval, closer to the tip of snout than to eye (NS 2.0 mm, EN 2.5 mm); canthal edges rounded, loreal region oblique, slightly concave; tympanum distinct, round; vomerine teeth absent; tongue notched posteriorly. Forelimbs: Forearm short and gracile (FLL 7.2 mm), hand length (HAL 16.3 mm); relative finger lengths I <II <IV <III, tips of fingers enlarged into discs; fingers free of webbing. Hinlimbs: Thigh moderately long (FeL 18.2 mm); tibia six times longer than wide (TbL 19.0 mm, TbW 2.9 mm); relative toe lengths I <II <III <V <IV; webbing formula I1-2II1-2III1-2IV2-1V; tibio-tarsal articulation reaching to the nostril when leg adpressed along body. Skin: Dorsum and dorsal parts of head; limbs overall smooth, but with some small tubercles; supratympanic fold indistinct; ventral part of forearm smooth; dorsolateral folds absent; throat, chest, belly and ventral part of thighs granular.

Colouration in life: Dorsal surface of head and body, flank green olive, a dark green irregular patch running from between eyes to shoulder; upper and lower lip green olive with some creamy white spots; dorsal part of limbs green olive with transverse dark green bands; throat and margin of throat, chest and belly marbled with white; ventral part of limbs greyish-white (Fig. 10 ) (determination after Nguyen et al. (2013), Mo et al. (2013)).

Distribution

In Vietnam, G. nonggangensis was previously known from Cao Bang Province ( Nguyen et al. 2013). Elsewhere, this species has been recorded from China ( Frost 2021).

Ecology

Specimen was found at 20:00 h on a tree, about 0.5 m above the ground. The surrounding habitat was mixed secondary forest of hardwoods and shrubs.

Notes

The specimens of G. nonggangensis from Bac Kan only differ slightly from those in the description of Mo et al. (2013) in having a rostral length shorter than eye diameter (vs. rostral length longer than eye diameter).

Figures

Figure 10. The male specimen of Gracixalus nonggangensis (IEBR A. 4899; SVL 32.9 mm) in life.