Kaloula discordia Poyarkov, Gorin, Bragin & Nguyen 2024, sp. nov.
Year: 2024
Type: other
Abstract: Kaloula discordia Poyarkov, Gorin, Bragin & Nguyen sp. nov. Figs 2, 4, 6, 7, 8, 9 C, Tables 3, 4 Chresonymy. Kaloula baleata [partim] — Orlov et al. (2002: 99); Nguyen et al. (2005: 43); Orlov and Ananjeva (2007: 148); Nguyen et al. (2009: 94). Kaloula indochinensis [partim] — Chan et al. (2013: 334, 2014: 577); Chandramouli and Prasad (2018: 52); Poyarkov et al. (2021 b: 39); Vassilieva (2021: 72–73); Holden (2023: 149). Holotype. ZMMU A-8134 (field number NAP-14688), adult male, from a pond in Cat Tien National Park, along the road from park headquarters to the Bau Sau Lake, Dong Nai River valley, Dac Lua Commune, Tan Phu District, Dong Nai Province, Vietnam, collected by N. A. Poyarkov, A. M. Bragin, and V. A. Gorin on 15 June, 2024 (11.44121 ° N, 107.41312 ° E; elevation 137 m a. s. l.) (Figs 6, 7 C). Paratypes (n = 14). ZMMU A-8135 – A-8140 (field numbers NAP-14689–14694), six adult males with collection data same as the holotype; ZMMU A-8141 – A-8143 (field numbers NAP-14688–14694), three adult males with collection data same as the holotype; ZISP 15285 –15287 (field numbers NAP- 14687, NAP-14695–14696), three adult males with collection data same as the holotype; ZMMU A-4739 (field number NAP-01674), adult male from Cat Tien National Park, Dong Nai River valley, Dac Lua Commune, Tan Phu District, Dong Nai Province, Vietnam, collected by N. A. Poyarkov on June 1, 2011 (11.44576 ° N, 107.38673 ° E; elevation 128 m a. s. l.); ZMMU A-4642 (field number NAP-00630), adult female from Cat Tien National Park, Dong Nai River valley, Dac Lua Commune, Tan Phu District, Dong Nai Province, Vietnam, collected by N. A. Poyarkov and A. B. Vassilieva on June 2, 2009 (11.44576 ° N, 107.38673 ° E; elevation 128 m a. s. l.) (Fig. 8). Referred materials (n = 3). ZMMU -A-4602-1 – 3 (field numbers NAP- 02010, NAP- 02086, and NAP- 02122), adult female and two subadult females from Cat Tien National Park, Dong Nai River valley, Dac Lua Commune, Tan Phu District, Dong Nai Province, Vietnam, collected by E. A. Galoyan on August 22, 2011, September 15, 2011, and November 11, 2011 (11.419503 ° N, 107.426442 ° E; elevation 117 m a. s. l.). Diagnosis. Kaloula discordia sp. nov. is distinguished from its congeners by the following combination of morphological characters: (1) medium body size (SVL 42.9–56.2 mm); (2) eyes comparatively small (eye length comprising 60 % – 75 % of snout length); (3) dorsally uniform dark olive-brown; (4) beige-gray ventrally with irregular white mottling on belly and limbs; (5) pale yellow or orange-brown 8 - shaped patch on either side of the neck posterior to eyes; (6) yellowish to orange axillary patch present; (7) grayish to beige-yellow inguinal patch present edged with black markings; (8) from gray to beige spot on tibiotarsal articulation present; (9) dark interorbital bar absent; (10) enlarged, widened finger disks (3 FDD 6.5 % – 7.5 % of SVL), ca. 1.27 times wider than toe disks; (11) finger subarticular tubercle formula: 1: 1: 2: 2; (12) toe subarticular tubercle formula: 1: 1: 2: 2: 2; (13) two metacarpal tubercles not in touch with each other; (14) two metatarsal tubercles, outer metatarsal tubercle rounded, smaller than elongated inner metatarsal tubercle. Description of the holotype (Fig. 6). Adult male in a good state of preservation, habitus robust, head wider than long (HW / HL 1.27), snout projecting beyond lower jaw, gently rounded in lateral view (Fig. 6 C); truncated in dorsal view; top of head flat; upper eyelid lacking supraciliary tubercles; eye length less than snout length (EL / SL 0.74) and less than interorbital distance (EL / IOD 0.76); pupils round; nostrils rounded, placed more towards the lateral sides of the snout, located closer to tip of snout than to eye, relatively close to each other (IND / IOD 0.60); supratympanic fold flat, glandular, rather thin; tympanum not visible (Fig. 6 C); dorsal surfaces of body and limbs with sparse tubercules, getting denser backwards; ventral surfaces of body and limbs with flat tubercules (Fig. 6 A, B). Cloacal opening unmodified, directed posteriorly. Forelimbs relatively long, more than a half of hind limb length (FLL / HLL 0.53); hand long, comprising more than a half of lower arm length (HAL / LAL 0.60) and almost half of forelimb length (HAL / FLL 0.49); fingers rather robust, notably flattened in cross section; relative finger lengths: I <II <IV <III; fingers free of webbing; terminal digits flattened forming wide transversely expanded disks (Fig. 6 E); finger subarticular tubercles distinct, large and round, finger subarticular tubercle formula 1: 1: 2: 2; inner metacarpal tubercle elongate; outer metacarpal tubercule triangular-shaped, dilated, bigger than inner metacarpal tubercle (OPTL / IPTL 1.18), two metacarpal tubercles not in touch with each other (Figs 6 E, 9 C); hindlimbs robust, relatively short, not much longer than body length (HLL / SVL 1.16); relative toe lengths: I <II <V <III
Authors: Gorin, Vladislav A., Orlov, Nikolai L., Bragin, Andrey M., Pawangkhanant, Parinya, Milto, Konstantin D., Le, Dac Xuan, Nguyen, Tan Van, Dufresnes, Christophe, Suwannapoom, Chatmongkon, Poyarkov, Nikolay A.
Language: English
Subfield: Global and Planetary Change
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6911660993
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