Leptobrachella minima (Taylor, 1962)

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

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.

Figures

Figure 5. The male specimen of Leptobrachella minima (IEBR A. 4880; SVL 30.8 mm) in life.