Tuesday, February 13, 2018

[Herpetology • 2018] On The Identities of Rhacophorus jarujini and Rhacophorus orlovi (Anura, Rhacophoridae) from Thailand

Rhacophorus jarujini Matsui & Panha, 2006

in Thongproh, Youjaroen, Chuaynkern,et al., 2018. 
Maejo Int. J. Sci. Technol. 12(1) 

 We investigated the respective identities of Rhacophorus jarujini and R. orlovi in Thailand based on specimens collected from several localities in north-eastern Thailand and specimens from museums, namely American Museum of Natural History, Field Museum of Natural History, North Carolina State Museum of Natural Science, Khon Kaen University Vertebrates Collection and Thailand Natural History Museum. Our results confirm that the specimens from Amnat Charoen and Ubon Ratchathani provinces, Thailand, which were previously identified as R. orlovi, are in fact R. jarujini. We therefore propose removing R. orlovi from the list of amphibian fauna of Thailand and that former records of R. orlovi should be replaced by R. jarujini. Furthermore, we report a new record of R. jarujini based on specimens collected from Phu Phan National Park (Sakon Nakhon province), the northernmost record of the species in Thailand.

 Keywords: Rhacophorus jarujiniRhacophorus orlovi, morphology, species distribution, Thailand

Figure 1. Live adult Rhacophorus jarujini from
 (A) Phu Phan NP (Sakon Nakhon province) and (B) Phu Jong-Na Yoi NP (Ubon Ratchathani province)

Figure 1. Live adult Rhacophorus jarujini from Phu Phan NP (Sakon Nakhon province) (A) and Phu Jong-Na Yoi NP (Ubon Ratchathani province) (B) 

Figure 4. Habitats of Rhacophorus jarujini in Thailand: (A) Wang Wern Waterfall, Yoddom WS, Ubon Ratchathani province;  (C) R. jarujini clinging on cave wall ca. 1 m from the ground; (D) R. jarujini on a tree at Phu Jong-Na Yoi NP, Ubon Ratchathani province 

 Examination of specimens of Rhacophorus jarujini and R. orlovi from Thailand confirms the uniqueness of these two species based on external morphological and morphometrical characters. The results confirm that all specimens from Thailand, which were previously identified as Rhacophorus orlovi, are in fact R. jarujini. The present distribution of R. jarujini is known to be from the provincial areas of Sakon Nakhon, Kalasin, Roi Et, Amnat Charoen and Ubon Ratchathani.

Prapaiporn Thongproh, Montri Youjaroen, Yodchaiy Chuaynkern, Chantip Chuaynkern, Pramote Ratree, Prateep Duengkae, Ekachai Phetcharat, Wassana Maiprom, Wimol Ungprombundith and Teerayut Wongpaiseart. 2018. On The Identities of Rhacophorus jarujini Matsui and Panha, 2006 and Rhacophorus orlovi Ziegler and Köhler, 2001 (Amphibia, Anura, Rhacophoridae) from Thailand. Maejo International Journal of Science and Technology [Maejo Int. J. Sci. Technol.].  12(1); 36-50.