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 Leptobrachella minima (Taylor, 1962) Materials Type status: Other material . Occurrence : catalogNumber: IEBR A.4880 ; individualCount: 1 ; sex: male ; lifeStage: adult ; Taxon : scientificName: Leptobrachella minima; class: Amphibia ; order: Anura ; family: Megophryidae ; genus: Leptobrachella ; specificEpithet: minima; scientificNameAuthorship: Taylor , 1962; Location : country: Vietnam ; countryCode: VN; stateProvince: Bac Kan ; locality: Nam Xuan Lac HSCA ; verbatimElevation: 342 m ; verbatimLatitude: 22°15.860'N ; verbatimLongitude: 105°29.268'E ; verbatimCoordinateSystem: WGS84; Event : eventDate: 23April 2021 ; eventRemarks: collected by L. M. Anh and D. H. Quyen ; Record Level : language: en; collectionCode: Amphibia ; basisOfRecord: PreservedSpecimen Type status: Other material . Occurrence : catalogNumber: IEBR A.4881 ; individualCount: 1 ; sex: male ; lifeStage: adult ; Taxon : scientificName: Leptobrachella minima; class: Amphibia ; order: Anura ; family: Megophryidae ; genus: Leptobrachella ; specificEpithet: minima; scientificNameAuthorship: Taylor , 1962; Location : country: Vietnam ; countryCode: VN; stateProvince: Bac Kan ; locality: Nam Xuan Lac HSCA ; verbatimElevation: 864 m ; verbatimLatitude: 22°17.260'N ; verbatimLongitude: 105°31.138'E ; verbatimCoordinateSystem: WGS84; Event : eventDate: 24April 2021 ; eventRemarks: collected by H. V. Chung and P. Q. Tien ; Record Level : language: en; collectionCode: Amphibia ; basisOfRecord: PreservedSpecimen Type status: Other material . Occurrence : catalogNumber: IEBR A.4882 ; individualCount: 1 ; sex: male ; lifeStage: adult ; Taxon : scientificName: Leptobrachella minima; class: Amphibia ; order: Anura ; family: Megophryidae ; genus: Leptobrachella ; specificEpithet: minima; scientificNameAuthorship: Taylor , 1962; Location : country: Vietnam ; countryCode: VN; stateProvince: Bac Kan ; locality: Nam Xuan Lac HSCA ; verbatimElevation: 377 m ; verbatimLatitude: 22°16.798'N ; verbatimLongitude: 105°33.358'E ; verbatimCoordinateSystem: WGS84; Event : eventDate: 26April 2021 ; eventRemarks: collected by H. V. Chung and P. Q. Tien ; Record Level : language: en; collectionCode: Amphibia ; basisOfRecord: PreservedSpecimen Type status: Other material . Occurrence : catalogNumber: IEBR A.4883 ; individualCount: 1 ; sex: male ; lifeStage: adult ; Taxon : scientificName: Leptobrachella minima; class: Amphibia ; order: Anura ; family: Megophryidae ; genus: Leptobrachella ; specificEpithet: minima; scientificNameAuthorship: Taylor , 1962; Location : country: Vietnam ; countryCode: VN; stateProvince: Bac Kan ; locality: Nam Xuan Lac HSCA ; verbatimElevation: 377 m ; verbatimLatitude: 22°16.798'N ; verbatimLongitude: 105°33.358'E ; verbatimCoordinateSystem: WGS84; Event : eventDate: 26April 2021 ; eventRemarks: collected by H. V. Chung and P. Q. Tien ; Record Level : language: en; collectionCode: Amphibia ; basisOfRecord: PreservedSpecimen Type status: Other material . Occurrence : catalogNumber: IEBR A.4884 ; individualCount: 1 ; sex: female ; lifeStage: adult ; Taxon : scientificName: Leptobrachella minima; class: Amphibia ; order: Anura ; family: Megophryidae ; genus: Leptobrachella ; specificEpithet: minima; scientificNameAuthorship: Taylor , 1962; Location : country: Vietnam ; countryCode: VN; stateProvince: Bac Kan ; locality: Nam Xuan Lac HSCA ; verbatimElevation: 723 m ; verbatimLatitude: 22°16.450'N ; verbatimLongitude: 105°30.712'E ; verbatimCoordinateSystem: WGS84; Event : eventDate: 25 August 2020 ; eventRemarks: collected by L. M. Anh, D. H . Quyen, and P. Q. Tien ; Record Level : language: en; collectionCode: Amphibia ; basisOfRecord: PreservedSpecimen Description Size small (SVL 27.3-30.8 mm in males; SVL 33.9 mm in female); head longer than wide (HL 10.6-11.6 mm, HW 9.3-10.6 mm in males; HL 13.8 mm, HW 12.6 mm in female); snout protruding, longer than eye diameter (RL 4.1-4.5 mm, ED 3.7-4.8 mm in males; RL 5.3 mm, ED 4.9 mm in female); nostrils oval, closer to the tip of snout than to eye (NS 1.7-2.7 mm, EN 2.2-2.7 mm in males; NS 1.9 mm, EN 3.3 mm in female); canthus rostralis distinct, loreal region concave; tympanum round, distinct; vomerine teeth absent; tongue deeped notched. Forelimbs: Forearm rather thin (FLL 6.4-7.0 mm in males; FLL 8.3 mm in female), hand length (HAL 12.6-15.8 mm in males; HAL 19.8 mm in female); relative finger lengths I <II <IV <III, tips of fingers not enlarged; fingers free of webbing. Hind-limbs: Thigh short (FeL 11.8-14.9 mm in males; FeL 16.8 mm in female); tibia five times longer than wide (TbL 13.5-14.7 mm, TbW 2.5-3.0 mm in males; TbL 17.4 mm, TbW 3.1 mm in female); relative toe lengths I <II <III <V <IV; tibio-tarsal articulation reaching to the eye when leg adpressed along body. Skin: Dorsal surface of head smooth; dorsum and upper part of flanks with tubercles and glandular folds; supratympanic fold distinct; dorsolateral fold absent; dorsal surface of limbs with tubercles and glandular folds; ventral surface smooth. Colouration in life: Dorsal surface of head and body brown grey with triangular marking between eyes, some grey spots in middle of back; dorsal surface of fore- and hind-limbs brown grey with dark bars; throat and chest transparent grey, border of throat grey with white spots; belly white (Fig. 5 ) (determination after Taylor (1962) , Pham et al. (2016) ). Distribution In Vietnam, L. minima was known from Son La, Dien Bien, Hoa Binh, Quang Ninh and Thanh Hoa Provinces ( Frost 2021 ). Elsewhere, this species has been recorded from Thailand and Laos ( Frost 2021 ). Ecology Specimens were found on the trees or on the ground along the stream between 19:30 and 21:30 h. The surrounding habitat was mixed secondary forest of hardwoods and shrubs.