Limnonectes bannaensis Ye, Fei, Xie & Jiang, 2007

Suwannapoom, Chatmongkon, Jiang, Ke, Wu, Yun-He, Pawangkhanant, Parinya, Lorphengsy, Sengvilay, Nguyen, Tan Van, Poyarkov, Nikolay A. & Che, Jing, 2021, First records of the fanged frogs Limnonectes bannaensis Ye, Fei & Jiang, 2007 and L. utara Matsui, Belabut & Ahmad, 2014 (Amphibia: Anura: Dicroglossidae) in Thailand, Biodiversity Data Journal 9, pp. 67253-67253 : 67253

Limnonectes bannaensis Ye, Fei, Xie & Jiang, 2007

Materials

Type status: Other material. Occurrence: catalogNumber: AUP-00481 ; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Limnonectes bannaensis; class: Amphibia ; order: Anura ; family: Dicroglossidae ; genus: Limnonectes ; specificEpithet: bannaensis; scientificNameAuthorship: Ye , Fei , Xie & Jiang, 2007; Location : country: Thailand; countryCode: TL; stateProvince: Nan; locality: Doi Phu Kha ; verbatimElevation: 750; verbatimLatitude: 19°03'21.3"N; verbatimLongitude: 101°10'47.8"E; Event: eventDate: 17 December, 2017; fieldNotes: collected by C. Suwannapoom, P. Pawangkhanant; Record Level: language: en; collectionCode: Amphibians; basisOfRecord: Preserved Specimen Type status: Other material. Occurrence: catalogNumber: AUP-00482; individualCount: 1; sex: adult male; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481 Type status: Other material. Occurrence: catalogNumber: AUP-00483; individualCount: 1; sex: adult male; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481 Type status: Other material. Occurrence: catalogNumber: AUP-00484; individualCount: 1; sex: adult male; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481 Type status: Other material. Occurrence: catalogNumber: AUP-00485; individualCount: 1; sex: adult male; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481 Type status: Other material. Occurrence: catalogNumber: AUP-00486; individualCount: 1; sex: adult male; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481 Type status: Other material. Occurrence: catalogNumber: AUP-00487; individualCount: 1; sex: adult male; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481 Type status: Other material. Occurrence: catalogNumber: AUP-00488; individualCount: 1; sex: adult male; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481 Type status: Other material. Occurrence: catalogNumber: AUP-00489; individualCount: 1; sex: adult female; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481 Type status: Other material. Occurrence: catalogNumber: AUP-00490; individualCount: 1; sex: adult male; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481 Type status: Other material. Occurrence: catalogNumber: AUP-00491; individualCount: 1; sex: adult female; Taxon: scientificName: Limnonectes bannaensis; Record Level: basisOfRecord: Preserved Specimen; dynamicProperties: collection date, collector and Location as the AUP-00481

Description

Morphological characters of specimens from Nan Province agreed with the descriptions by Ye et al. (2007). Large body size, with males SVL of 80.7 mm (n = 9) and females SVL of 75.4 mm (n = 2). The complete morphometric description of each specimen is presented in Suppl. material 2. They are morphologically distinct in comparison between sexes. Males can be distinguished from females by the dorsal skin texture of the male appearing to be smoother, with less tubercles, supratympanic fold dark brown, indistinct, throat heavily pigmented. Head longer than wide (males HL of 36.8 mm, HW 34.9 mm, n = 9 and females HL of 34.9 mm, HW 32.9 mm, n = 2). Fore limbs robust, relatively short, fingers moderately slender, finger length formula: II<I <IV <III (Fig. 3 D), toe length formula: I <II <V <III <IV (Fig. 3 E), tips of toes expanded into round elevated pads lacking grooves, toe webbing well-developed, complete, webbing formula: I 0 - 0 II 0 - 0 III 0 - 0 IV 0 - 0 V. Skin on dorsum weakly granulated with few fine folds on the back and a few small rounded tubercles scattered on the rear of the dorsum, ventrally smooth. Colouration in life: black stripes present on areas around the folds (Fig. 3 A and C), dorsum light red brown with confluent dark brown markings (Fig. 3 A and B and Fig. 4 ), dark transverse bars on upper surface of hind limbs, side of head and lateral surfaces of body lighter brown, lower lip white marbled with brown, belly white with brown vermiform markings, dark brown bar between eyes edged with thin yellowish-brown bars, lower half of iris golden, upper half brown, separated by a dark brown horizontal band, nuptial pad white. Colouration in preservative: after three years in preservative, the colouration pattern did not change, dorsal and lateral body colouration faded to brown, dark brown bars on upper lip turned less distinct, lower lip turned dark with light mottling, ventre immaculate, ventral portions of limbs mottled around margins, palmar and plantar surfaces turned dark brown.

Distribution

This species is known from southern China, northern and central Vietnam and northern Laos (Frost 2020). This is the first record for Thailand, ca. 266 km southwest from the type locality in Jinghong City, Mengla County, Yunnan Province, China ( Ye et al. 2007).

Ecology

Specimens were found between 19:00 to 21:00 h in small rocky streams (Fig. 5 ). Most specimens were found in the water. The surrounding habitat was secondary evergreen forest of medium growth. Other anuran species found in sympatry include: Limnonectes taylori , Kurixalus bisacculus (Taylor), Leptobrachium cf. huashen Fei & Ye, Leptobrachella cf. minima (Taylor) and Amolops cremnobatus Inger & Kottelat.

Figures

Figure 3. Male of Limnonectes bannaensis (AUP- 00485) in life. A. Dorsal view; B. Ventral views; C. Dorsal view of leg (notice the tubercles); D. Palmar view of hand; E. Ventral view of foot.

Figure 4. Colour variations of Limnonectes bannaensis A. Dorsal view of male (AUP- 00481); B. Dorsal view of female (AUP- 00491).

Figure 5. Habitat of Limnonectes bannaensis in Bo Kluea District, Nan Province, northern Thailand.