Megophrys jingdongensis Fei & Ye, 1983

Pham, Anh Van, Pham, Cuong The, Doan, Lan Duc, Ziegler, Thomas & Nguyen, Truong Quang, 2019, New records of megophryids (Amphibia: Anura: Megophryidae) from Son La Province, Vietnam, Biodiversity Data Journal 7, pp. 39140-39140 : 39140

Megophrys jingdongensis Fei & Ye, 1983

Materials

Type status: Other material. Occurrence: catalogNumber: TBU ML.2017. 9 ; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificNameID: Megophrysjingdongensis; scientificName: Megophrysjingdongensis; class: Amphibia; order: Anura; family: Megophryidae; genus: Megophrys; specificEpithet: jingdongensis; scientificNameAuthorship: Fei & Ye, 1983; Location: country: Vietnam; countryCode: VN; stateProvince: Son La; county: Muong La; municipality: Ngoc Chien; locality: near Nam Nghiep Village ; verbatimElevation: 1990 m; verbatimLatitude: 21°19.65'N; verbatimLongitude: 103°36.66'E; verbatimCoordinateSystem: WGS84; Event: eventDate: April 16, 2017; eventRemarks: collected by N.B. Song and T.V. Dau; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: Preserved Specimen Type status: Other material. Occurrence: catalogNumber: TBU ML.2017. 11 ; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificNameID: Megophrysjingdongensis; scientificName: Megophrysjingdongensis; class: Amphibia; order: Anura; family: Megophryidae; genus: Megophrys; specificEpithet: jingdongensis; scientificNameAuthorship: Fei & Ye, 1983; Location: country: Vietnam; countryCode: VN; stateProvince: Son La; county: Muong La; municipality: Ngoc Chien; locality: near Nam Nghiep Village ; verbatimElevation: 1990 m; verbatimLatitude: 21°19.65'N; verbatimLongitude: 103°36.66'E; verbatimCoordinateSystem: WGS84; Event: eventDate: April 16, 2017; eventRemarks: collected by N.B. Song and T.V. Dau; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: Preserved Specimen Type status: Other material. Occurrence: catalogNumber: TBU XV.2017.118 ; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificNameID: Megophrysjingdongensis; scientificName: Megophrysjingdongensis; class: Amphibia; order: Anura; family: Megophryidae; genus: Megophrys; specificEpithet: jingdongensis; scientificNameAuthorship: Fei & Ye, 1983; Location: country: Vietnam; countryCode: VN; stateProvince: Son La; county: Bac Yen; municipality: Xim Vang; locality: near Nam Nghiep Village ; verbatimElevation: 1650 m; verbatimLatitude: 21°23.05'N; verbatimLongitude: 104°23.21'E; verbatimCoordinateSystem: WGS84; Event: eventDate: May 1, 2017; eventRemarks: collected by Q.T. Bui and T.V. Dau; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: Preserved Specimen Type status: Other material. Occurrence: catalogNumber: IEBR 4558 ; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificNameID: Megophrysjingdongensis; scientificName: Megophrysjingdongensis; class: Amphibia; order: Anura; family: Megophryidae; genus: Megophrys; specificEpithet: jingdongensis; scientificNameAuthorship: Fei & Ye, 1983; Location: country: Vietnam; countryCode: VN; stateProvince: Son La; county: Bac Yen; municipality: Xim Vang; locality: near Nam Nghiep Village ; verbatimElevation: 1650 m; verbatimLatitude: 21°23.05'N; verbatimLongitude: 104°23.21'E; verbatimCoordinateSystem: WGS84; Event: eventDate: May 1, 2017; eventRemarks: collected by Q.T. Bui and T.V. Dau; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: Preserved Specimen

Description

Morphological characters of the specimens (n = 4) from Son La Province agreed with the descriptions of Fei et al. (2009) and Nguyen et al. (2016): SVL 49.0-50.0 mm in males (n = 2), 58.5-59.7 mm in females (n = 2); head wider than long (males: HL 17.5-17.7 mm, HW 18.0 mm, HL/SVL 35-36%, HW/SVL 36-37%; females: HL 19.5-20.4 mm, HW 19.9-21.0 mm, HL/SVL 33-35%, HW/SVL 33-36%); snout pointed (SL 6.3-6.5 mm in males, 7.1-7.5 mm in females), longer than horizontal diameter of eye (EL 5.9-6.1 mm in males, 6.9-7.0 mm in females); loreal region concave; nostril lateral, closer to eye than to tip of snout (NS 3.2 mm, EN 2.5-2.6 mm in males; NS 3.6-3.7 mm, EN 2.7-2.9 mm in females); interorbital space flat, slightly broader than upper eyelid and internarial distance (IOD 4.9-5.1 mm, UEW 4.2-5.0 mm, IN 4.8-5.0 mm in males; IOD 6.0 mm, UEW 4.9-5.3 mm, IN 5.7-5.9 mm in females); tympanum distinct (TD 2.8-2.9 mm in males, 3.0-3.1 mm in females) less than half of eye diameter (TD/EL 47-48% in males, 43-45% in females); vomerine teeth present; tongue heart–shaped, round posteriorly; vocal sacs present in males.

Forelimb slender (FLL 29.0-29.3 mm in males, 31.9-34.0 mm in females); relative finger lengths IV ≤ II <I <III; fingers without dermal fringe, free of webbing; tips of fingers round, not swollen; subarticular tubercle indistinct; palmar tubercles indistinct; nuptial pads weak and nuptial spines on first and second fingers.

Hindlimb slender, long (HLL 84.9-87.3 mm in males, 100.3-103.0 mm in females); tibia longer than thigh (TL 27.2-27.7 mm, FL 25.0-25.8 mm in males; TL 30.3-31.6 mm, FL 29.2-29.8 mm in females); relative toe lengths I <II <V <III <IV; tips of toes round, slightly swollen; webbing formula I ¼ - 1II 1/3 - 2III1 ½ - 2IV2 - ½ V; toes with weak dermal fringe; inner metatarsal tubercle distinct; subarticular tubercles indistinct; tibio-tarsal articulation reaching to anterior corner of eye.

Skin. Dorsal surface of head and body smooth; supratympanic fold extending from posterior edge of eye to axilla; upper lips, around tympanum and upper eyelid with small spines; flanks with some tubercles; surrounding of cloaca with tubercles; dorsolateral folds present; and ventral surface smooth.

Colouration in life. Dorsal surface brown to light yellowish-brown; a darker brown triangular marking with a yellow central blotch between eyes; chin, chest and anterior part of belly dark brown in males or light brown with erratic dark brown blotches in females, a round white spot on each side of the chest present; posterior part of belly and ventral surface of thighs cream to dirty white; posterior part of thighs dark brown with some light blotches ( Fig. 5 ).

Distribution

In Vietnam, this species has been recorded from Lao Cai and Ha Giang provinces ( Nguyen et al. 2009, Nguyen et al. 2016). Our new record in Son La Province is approximately 70 km and 150 km distant from Lao Cai and Ha Giang provinces, respectively. Elsewhere, this species is known from China ( Frost 2019).

Ecology

The specimens were found on the edge of streams, between 19:00 and 21:30. The surrounding habitat was secondary forest, composed of larger hardwoods and shrubs.

Figures

Figure 5. Megophrys jingdongensis (TBU ML. 2017.9, adult female) from Son La Province, Vietnam. Photo by A. V. Pham.