Megophrys parva (Boulenger, 1893)

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 parva (Boulenger, 1893)

Materials

Type status: Other material. Occurrence: catalogNumber: TBU PAE.705 ; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificNameID: Megophrysparva; scientificName: Megophrysparva; class: Amphibia; order: Anura; family: Megophryidae; genus: Megophrys; specificEpithet: parva; scientificNameAuthorship: (Boulenger, 1893); Location: country: Vietnam; countryCode: VN; stateProvince: Son La; county: Thuan Chau; municipality: Chieng Bom; locality: near Huoi Pu Village ; verbatimElevation: 1290 m; verbatimLatitude: 21°23.76'N; verbatimLongitude: 103°38.55'E; verbatimCoordinateSystem: WGS84; Event: eventDate: June 19, 2014; eventRemarks: collected by A. V. Pham, H. V. Tu and C. K. P. D. Kham; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: Preserved Specimen Type status: Other material. Occurrence: catalogNumber: TBU PAE.711 ; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificNameID: Megophrysparva; scientificName: Megophrysparva; class: Amphibia; order: Anura; family: Megophryidae; genus: Megophrys; specificEpithet: parva; scientificNameAuthorship: (Boulenger, 1893); Location: country: Vietnam; countryCode: VN; stateProvince: Son La; county: Thuan Chau; municipality: Chieng Bom; locality: near Huoi Pu Village ; verbatimElevation: 1290 m; verbatimLatitude: 21°23.76'N; verbatimLongitude: 103°38.55'E; verbatimCoordinateSystem: WGS84; Event: eventDate: June 19, 2014; eventRemarks: collected by A. V. Pham, H. V. Tu and C. K. P. D. Kham; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: Preserved Specimen Type status: Other material. Occurrence: catalogNumber: TBU PAE.712 ; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificNameID: Megophrysparva; scientificName: Megophrysparva; class: Amphibia; order: Anura; family: Megophryidae; genus: Megophrys; specificEpithet: parva; scientificNameAuthorship: (Boulenger, 1893); Location: country: Vietnam; countryCode: VN; stateProvince: Son La; county: Thuan Chau; municipality: Chieng Bom; locality: near Huoi Pu Village ; verbatimElevation: 1290 m; verbatimLatitude: 21°23.76'N; verbatimLongitude: 103°38.55'E; verbatimCoordinateSystem: WGS84; Event: eventDate: June 19, 2014; eventRemarks: collected by A. V. Pham, H. V. Tu and C. K. P. D. Kham; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: Preserved Specimen Type status: Other material. Occurrence: catalogNumber: TBU SC.2015.06 ; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificNameID: Megophrysparva; scientificName: Megophrysparva; class: Amphibia; order: Anura; family: Megophryidae; genus: Megophrys; specificEpithet: parva; scientificNameAuthorship: (Boulenger, 1893); Location: country: Vietnam; countryCode: VN; stateProvince: Son La; county: Song Ma; municipality: Huoi Mot; locality: near Pa Tet Village ; verbatimElevation: 1270 m; verbatimLatitude: 21°00.89'N; verbatimLongitude: 103°38.12'E; verbatimCoordinateSystem: WGS84; Event: eventDate: April 1, 2015; eventRemarks: collected by A. V. Pham and D. B. Giang; 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 Boulenger (1893), Bourret (1942), and Fei et al. (2009): SVL 44.5-46.7 mm in males (n = 2), 55.4-56.7 mm in females (n = 2); head longer than wide (males: HL 15.4-16.5 mm, HW 14.8-16.2 mm, HL/SVL 35%, HW/SVL 33-35%; females: HL 18.7 mm, HW 18.0-18.5 mm, HL/SVL 33-34%, HW/SVL 32-33%); snout obliquely truncate, projecting beyond upper jaw (SL 5.9-6.7 mm in males, 6.7-7.0 mm in females), longer than horizontal diameter of eye (EL 5.3-5.9 mm in males, 5.8 mm in females); loreal region concave; nostril lateral, slightly closer to eye than to tip of snout (NS 2.8-3.2 mm, EN 2.7-2.9 mm in males; NS 3.2-3.3 mm, EN 3.1-3.2 mm in females); interorbital space flat, broader than upper eyelid and narrower than internarial distance (IOD 4.6-4.7 mm, UEW 4.1-4.2 mm, IN 5.0-5.5 mm in males; IOD 5.0-5.2 mm, UEW 4.2-4.7 mm, IN 5.5-5.6 mm in females); tympanum distinct (TD 3.5-3.7 mm in males, 4.5 mm in females); vomerine teeth present; tongue heart–shaped, round posteriorly; vocal sacs present in males.

Forelimb slender (FLL 27.0-28.9 mm in males, 31.0-34.1 mm in females); relative finger lengths I ≤ II <IV <III; fingers dermal fringe absent, free of webbing; tips of fingers round, not swollen; subarticular tubercles indistinct; palmar tubercles indistinct; nuptial pads absent in males.

Hindlimb slender, long (HLL 69.1-75.6 mm in males, 85.0-94.0 mm in females); tibia longer than thigh (TL 22.2-23.7 mm, FL 20.5-20.6 mm in males; TL 27.0-29.8 mm, FL 24.4-24.6 mm in females); relative toe lengths I <II <V <III <IV; tips of toes round, slightly swollen; webbing rudimentary; toes without dermal fringe; metatarsal tubercle indistinct; subarticular tubercles indistinct; tibiotarsal articulation reaching to anterior margin of eye.

Skin. Dorsal surface smooth; flanks with small glandular warts; supratympanic fold present, from posterior edge of eye to axilla; around cloaca with small tubercles; ventral surface smooth.

Colouration in life. Dorsal surface light yellowish-brown; a darker brown triangular marking between eyes; upper lips with vertical dark brown bars; ventral surface whitish, a round white spot on each side of the chest present; ventral surface of limbs reddish ( Fig. 7 ).

Distribution

In Vietnam, this species has been recorded from Lao Cai, Lai Chau, Dien Bien, and Ha Giang provinces ( Nguyen et al. 2009, Orlov et al. 2015, Luong et al. 2019). Our record in Son La Province is the southernmost record of this species in Vietnam. Elsewhere, this species is known from Nepal, India, Bangladesh, Myanmar, Thailand, China, and Laos ( Nguyen et al. 2009, Frost 2019).

Ecology

The specimens were found on the edge of streams, between 19:00 and 22:00 h. The surrounding habitat was mixed secondary forest of medium hardwoods and shrubs.

Figures

Figure 7. Megophrys parva (TBU PAE. 705, adult male) from Son La Province, Vietnam. Photo by A. V. Pham.