Leptobrachella yunkaiensis Wang, Li, Lyu & Wang, 2018

Chen, Wei-Cai, Bei, Yong-Jian & Li, Peng, 2025, A new species of the genus Leptobrachella (Amphibia, Anura, Megophryidae) from the Darongshan Nature Reserve, Guangxi, China, ZooKeys 1260, pp. 171-194 : 171-194

Leptobrachella yunkaiensis Wang, Li, Lyu & Wang, 2018

Fig. 6 , Suppl. material 1

Specimens examined.

• Seven adult males: NNU 001147 – NNU 001151 , NNU 001154 , NNU 001155 ; • one adult female: NNU 001156 , collected from the Darongshan Nature Reserve , Yulin City, Guangxi, China ( 22.860°N, 110.208°E; elevation 1125 m) by Wei-Cai Chen on 19 March 2023 .

Description of Guangxi population.

The morphological characters of the Darongshan specimens align closely with the original description of L. yunkaiensis by Wang et al. (2018). Measurements are summarized in Table 4 . Males SVL 24.6–27.2 mm; head length subequal to width ( HL 9.3–10.5 mm; HW 9.4–10.5 mm); snout projecting beyond lower jaw; nostril oval, closer to snout tip than to eye; canthus rostralis rounded; loreal region concave, sloping; interorbital region flat; pupil vertical; ED 3.5–4.2 mm; IN 2.5–3.1 mm; tympanum distinct, round, concave; distinct, raised supratympanic fold from posterior corner of eye to supra-axillary gland; vomerine teeth absent; tongue pyriform, notched posteriorly.

Fingers lacking webbing and fringes; tips slightly swollen; relative finger lengths I <II ≈ IV <III; nuptial pads absent; subarticular tubercles absent; inner and outer palmar tubercles prominent, separated. Toes lacking webbing except rudimentary between II and III; lateral dermal fringes narrow to wide; tips oval, not swollen; relative toe lengths I <II <V <III <IV; subarticular tubercles absent, replaced by indistinct dermal ridges; inner metatarsal tubercle elongated; outer metatarsal tubercle absent; tibiotarsal articulation reaching mid-eye level when leg adpressed; heels meeting when thighs held at right angles to body.

Dorsal skin rough with small tubercles; ventral skin smooth; pectoral glands rounded, creamy white, ~ 1.3 mm diameter; femoral glands oval, ~ 1.6 mm diameter, closer to knee than vent; supra-axillary glands small, round, ~ 0.5 mm diameter; ventrolateral glandular line distinct and continuous; limbs with sparse tubercles.

Dorsum brown with sparse pale yellow markings; dark brown interorbital triangle; tympanum brown; brown supratympanic line; dark brown spots on upper lip; flanks with irregular black spots and creamy yellow tubercles; dorsal thigh with 3–5 distinct transverse dark brown bars; dorsal forearms with three distinct transverse dark brown bars; elbows and upper arms tangerine; ventral surface pink or creamy white with minute irregular creamy textures; ventral limbs with tiny irregular creamy yellow spots; pectoral, femoral, supra-axillary glands creamy yellow; pupil black; iris bicolored, upper half tangerine, lower half silver (Fig. 6 , Suppl. material 1).

Distribution.

The type locality of L. yunkaiensis is Dawuling Forest Station, Maoming City, Guangdong, China ( Wang et al. 2018). Previous records include Ehuangzhang Nature Reserve, Guangdong and Lidong, Bobai City, Guangxi, China ( Chen et al. 2018; Yu et al. 2024). The Darongshan Nature Reserve, Yulin City, Guangxi, reported herein, represents the fourth known locality for this species (Fig. 1 ).

Figures

Figure 1. Localities of the new species, L. shiwandashanensis, and L. yunkaiensis.

Figure 6. Morphological characters of L. cf. yunkaiensis from Guangxi (adult male, voucher no. NNU 001147). A. Dorsal view; B. Dorsolateral view; C. Ventral view; D. Ventral view of hand; E. Ventral view of foot.