BATRACHIANS OF THE MALAY PENINSULA. 201 



extraordinarily difficult to catch. Their mottled colouring renders 

 them almost invisible when sitting on the granite rocks ; they dive 

 directly one attempts to approach them, swimming with ease in 

 the strongest current and concealing themselves in crevices under 

 water. 



I get them from the foot of the hill at an elevation of 3,000 feet. 

 The Skeat Expedition procured specimens from streams at the foot 

 of Gunong Inas. 



18. Rana signata, Giinther. 



Rana signata, Boulenger, Cat. Bafcr. Sal., p. 71 ; Laidlaw, P. Z. S., 

 1900, p. 886. 



Obtained by the Skeat Expedition at the foot of Gunong Inas. 

 Previously known from Borneo. 



19. Rana livida, Blyth. 



Rana Uvida, Boulenger, Fauna Ind., Rept., p. 462. 



Mr. Boulenger has identified a specimen obtained in the Larut 

 District, Perak, by Mr. L. Wray. 



It was previously known from the Himalayas and Assam to Tenas- 

 serim. 



20. Rana lateralis, Blgr. 



Rana lateralis, Boulenger, Ann. Mus., Genov. (2), v, 1887, p. 483, pi. 

 viii, fig. 2, id. " Fauna of India," Rept. and Batr., p. 457 ; Laidlaw, 

 P. Z. S., 1900, p. 886. 



A single frog obtained by the Skeat Expedition in thick jungle at 

 Kuala Aring, in the Siamese Malay States, is referred to this species. 

 Previously known from Borneo only. 



21. Rana dorije, Blgr. 



Rana dorice, Boulenger, Ann. Mus., G-enova (2), v, 1887, p. 482, 

 pi. iii, fig. 1 ; ib. xiii, 1893, p. 328, pi. viii, fig. 1 ; Faun. Ind., Rept. 

 p. 447. 



A single example of Rana dorice obtained by Mr. L. Wray in Lanit, 

 Perak, has been identified by Mr. Boulenger. Previously known from 

 Karin Hills, Tenasserim, Mergui. 



22. ? Rhacophorus hecticus, Peters. 

 Rhacophorus hecticus, Blgr., Cat. Batr. Sal., p. 78. 



Captain Flower considered that a large Rkacoplwrus in the Perak 

 State Museum possibly belonged to this species. 

 Described from Samar Island, Philippines. 



23. Rhacophorus leucomystax, Gravenh. 



