New records of amphibians from Bac Kan Province, Vietnam Author Luong, Anh Mai Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam Author Do, Quyen Hanh Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam & Faculty of Environmental Sciences, University of Science, Vietnam National University, 334 Nguyen Trai Street, Thanh Xuan District, Hanoi, Vietnam Author Hoang, Chung Van https://orcid.org/0000-0002-0709-974X Forest Resources and Environment Center, Vinh Quy Street, Thanh Tri District, Hanoi, Vietnam Author Phan, Tien Quang https://orcid.org/0000-0002-2738-5364 Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam Author Nguyen, Truong Quang https://orcid.org/0000-0002-6601-0880 Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam & Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam Author Pham, Cuong The Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam & Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam cuongiebr@gmail.com text Biodiversity Data Journal 2022 2022-02-08 10 75595 75595 http://dx.doi.org/10.3897/BDJ.10.e75595 journal article http://dx.doi.org/10.3897/BDJ.10.e75595 1314-2828-10-e75595 9DEA8B68724A5662B3F46692735571C8 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).