Quasipaa binhi Pham, Hoang, Phan, Pham, Ong, Nguyen, Ziegler & Nguyen, 2025, sp. nov.
Year: 2025
Type: other
Abstract: Quasipaa binhi sp. nov. Figs 16, 17, 18, 19, Table 7 Quasipaa delacouri: Yan et al. 2021: 1–7. Quasipaa cf. verrucospinosa 2: Suwannapoom et al. 2021: 1–12. Material examined. Holotype. • IEBR A.5174, adult male, collected by T. Q. Nguyen and C. T. Pham, on 11 March 2015, in Dong Chau-Khe Nuoc Trong Nature Reserve (16°56.461'N, 106°38.299'E, at an elevation of 447 m a. s. l.), Le Thuy District, Quang Binh Province, Vietnam. Paratypes. (n = 8) • IEBR A.5181, adult female, the same collection data as for holotype; IEBR A. 5178, 5179, two adult males and IEBR A.5175, 5180, two adult females, collected by T. Q. Nguyen and C. T. Pham, on 18 March 2015, in Dong Chau - Khe Nuoc Trong Nature Reserve (16°59.273'N, 106°36.568'E, at an elevation of 382 m a. s. l.), Le Thuy District, Quang Binh Province, Vietnam; • IEBR A.5182, adult male, collected by C. T. Pham and C. V. Hoang, on 27 July 2015, in Dong Chau-Khe Nuoc Trong Nature Reserve (16°57.036'N, 106°37.504'E, at an elevation of 300 m a. s. l.), Le Thuy District, Quang Binh Province, Vietnam; • IEBR A.5183, adult male and IEBR A.5184, adult female, collected by C. T. Pham and T. V. Nguyen, on 5 June 2017, in Sao La Nature Reserve (16°04.306'N, 107°29.062'E, at an elevation of 750 m a. s. l.), A Luoi District, Thua Thien Hue Province, Vietnam. Diagnosis. Both morphological characteristics (body very stout, skin rough with dermal ridges and tubercles, forelimbs of males strongly enlarged, with inner side of arms or fingers or chest and belly with black spines) (Fei et al. 2009) and molecular data revealed the new species to be nested within Quasipaa. Quasipaa binhi sp. nov. is distinguishable from its congeners by a combination of the following morphological characteristics: (1) SVL 76.9–101.1 mm in males and 88.5–123.4 mm in females; (2) head broader than long (HL / HW 0.96 in males, 0.96 in females); (3) vomerine teeth present; (4) external vocal sacs absent; (5) tympanum visible, round; (6) dorsum with thin and elongate ridges intermixed with small round tubercles; (7) flanks covered by oval and round tubercles; (8) supratympanic fold present; (9) dorsolateral fold absent; (10) dorsum and dorsal surface of fore- and hindlimbs with small black spines, scattered; (11) nuptial pad absent on finger I in males (12) ventral surface of body and all fingers without spines in males; (13) eggs yellowish cream with melanic poles in females; (14) toes fully webbed to distal end of terminal phalanx; and (15) in life, dorsum dark brown and belly immaculate white, and iris dark green. Description of holotype. A large frog (SVL 101.1 mm); habitus robust with enlarged head (HL / SVL 0.40, HW / SVL 0.42); head broader than long (HL 40.6 mm, HW 42.0 mm); snout round anteriorly in dorsal view, projecting beyond lower jaw; nostril lateral, closer to eye than to the tip of snout (NS 8.3 mm, EN 7.4 mm); canthus rostralis indistinct; loreal region oblique and slightly concave; rostral length greater than eye diameter (RL 15.8 mm, ED 12.2 mm); interorbital distance smaller than internarial distance and upper eyelid width (IOD 6.7 mm, IND 9.3 mm, UEW 9.9 mm); tympanum slightly visible (TD 4.4 mm) smaller than the distance from tympanum to eye (TYE 6.1 mm), ~ 36 % eye diameter; vomerine teeth in two oblique ridges; tongue cordiform, notched posteriorly; external vocal sac absent. Forelimbs: arms short; upper arm length (UAL) 17.2 mm, forearm length (FAL) 45.1 mm; relative finger lengths: II <I <IV <III; fingers free of webbing; narrow dermal ridge on sides of fingers present on fingers II, III; tips of fingers swollen, not expanded; subarticular tubercles prominent, round, formula 1, 1, 2, 2; inner metatarsal tubercle oval; outer metatarsal tubercle elongate; nuptial pad absent. Hindlimbs: tibia length longer than thigh length (FeL 56.0 mm, TbL 61.0 mm), ~ 3.7 × longer than wide (TbW 16.2 mm); tips of toes swollen, round; relative length of toes: I <II <V <III
Authors: Pham, Cuong The, Hoang, Chung Van, Phan, Tien Quang, Pham, Anh Van, Ong, An Vinh, Nguyen, Vien Hong Thi, Ziegler, Thomas, Nguyen, Truong Quang
Language: English
Subfield: Global and Planetary Change
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6968085401
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