Rhacophorus orlovi Ziegler & Koehler , 2001

Liu, Shuo, Hou, Mian, Fan, Yi, Mo, Mingzhong & Rao, Dingqi, 2022, First record of Theloderma khoii Ninh, Nguyen, Nguyen, Hoang, Siliyavong, Nguyen, Le, Le & Ziegler, 2022 from China, with confirmation of Rhacophorus orlovi Ziegler & Koehler, 2001 in China (Anura, Rhacophoridae), Herpetozoa 35, pp. 199-208 : 199

Rhacophorus orlovi Ziegler & Koehler, 2001

Figs 6 , 7

Specimen examined.

KIZ20210506, subadult female; KIZ20210507-KIZ20210508, two adult female; all collected on 18 May 2021 by Shuo Liu from Guiliang Village, Laofanzhai Township, Hekou County, Honghe Prefecture, Yunnan Province, China (22°41'10"N, 103°49'45"E, 750 m elevation).

Description of the specimens from China.

Measurements are presented in Table 3 . Body size moderate (KRL 53.9-55.6 mm in adult females); head slightly longer than wide (KL/KB 1.01-1.02); snout slightly pointed, rounded in dorsal and lateral views; nostril closer to tip of snout than to eye (NS/AN 0.59-0.83); canthus rostralis well developed, slightly rounded, constricted; loreal region concave, sloped towards lip; interorbital region slightly convex; interorbital distance longer than upper eyelid length and internarial distance; eye diameter shorter than snout; tympanum distinct, approximately half of eye diameter (TD/AD 0.48-0.52); vomerine teeth in oblique ridges; tongue cordiform, free behind.

Forelimbs slender, relative lengths of fingers I <II <IV <III; subarticular tubercles large and distinct, with small and distinct supernumerary tubercles; formula of subarticular tubercles: 1, 1, 2, 2; tips of fingers dilated into well developed, broad discs with circumferential groove; disc of third finger approximately equal to tympanum diameter; webbing between first and second finger reaching subarticular tubercles; webbing between second and third finger nearly reaching base of disc of second finger and proximal subarticular tubercle of third finger; and webbing between third and fourth finger reaching distal subarticular tubercles. Hindlimbs slender, tibiotarsal articulation reaching between eye and snout tip when hindlimbs pressed forward; relative length of toes I <II <III <V <IV; subarticular tubercles distinct; formula of subarticular tubercles: 1, 1, 2, 3, 2; inner metatarsal tubercle oval, outer metatarsal tubercle absent; discs on toes smaller than those on fingers; webbing between first and second toe reaching base of disc of first toe and subarticular tubercle of second toe; webbing between second toe and third toe reaching base of disc of second toe and distal subarticular tubercle of third toe; webbing between third and fourth toe reaching base of disc of third toe and distal subarticular tubercle of fourth toe; and webbing between fourth and fifth toe reaching bases of discs.

Skin smooth dorsally and laterally with sparse tiny tubercles; supratympanic fold distinct, ending above insertion of arm; skin on throat smooth, on abdomen and inner thighs coarsely granular; weak tubercles and protuberances on outer edges of lower arms and tarsus; tarsal projections on heels indistinct; skin beneath anal opening and on posterior of thigh with few small whitish tubercles.

Coloration in life.

Dorsum flesh color, reddish brown, or dark brown, with some black dots or indistinct stripes; dorsal limbs with distinct dark bands; loreal region dark brown with irregular light yellow patches or no patch; iris golden in upper third, bronze in remainder; flanks brown with indistinct reticulation or black and yellow spots; groin and lateral thighs and shanks brownish black with white spots; vent region greyish black; venter greyish in adult females and light yellow to orange in subadult female.

Distribution.

This species is currently known from Vietnam and Laos, as well as Maguan County, Wenshan Prefecture, and Hekou County, Honghe Prefecture, Yunnan, China.

Figures

Figure 6. The specimens of Rhacophorus orlovi from Hekou County, Yunnan, China, in preservative. A. Dorsal view; B. Ventral view.

Figure 7. The specimens of Rhacophorus orlovi from Hekou County, Yunnan, China, in life. A. Dorsolateral view of the subadult female (KIZ 20210506); B. Ventral view of the subadult female (KIZ 20210506); C. Dorsolateral view of the adult female (KIZ 20210507); D. Ventral view of the adult female (KIZ 20210507); E. Dorsolateral view of the adult female (KIZ 20210508); F. Ventral view of the adult female (KIZ 20210508).