416 MR. G. A. BOULENGER ON ORIENTAL [-^Pl'- 28, 



short hoini-like tubercle on outer edge of upper eyelid ; lower 

 parts smooth, Olive-brown above ; sides of head with oblique 

 dark bars ; a large triangular dark marking between the eyes ; 

 limbs with dark cross-bars ; hinder side of thighs dark bi-own, 

 with one or two round whitish spots ; belly dotted or spotted with 

 brown ; throat and breast dark brown, or with large dark brown 

 spots or symmetrical mai'kings. Male with an internal vocal 

 sac. 



6. S. . _ 



From snout to vent 47 65 millim. 



Length of head (to occiput) 14 19 ,, 



Widtiiofhead 17 23 „ 



Length of snout 4 6 ,, 



Diameter of eye 5 6 ,, 



Interorbital width 5 8 ,, 



Diameter of tymjoanum 3 3| ,, 



Distance between eye and tympanum ... 4 6 ,, 



Forelimb 31 43 „ 



Hand 12 16 „ 



Hindlimb 83 118 „ 



Tibia 27 38 „ 



Foot 22 33 „ 



Only known from the mountains of Perak, in the Malay 

 Peninsula, between 3000 and 4500 feet. Mr. A. L. Butler has 

 observed it to be the commonest frog on the hills above 3000 ft. 

 and to be entirely nocturnal, being found in the daytime under 

 logs, rocks, or in holes in banks, and in densely shaded spots among 

 dead leaves. These frogs appear to be quite bewildered by the 

 sunlight, and when disturbed give one jump into the open and 

 make no other attempt to escape. When seized in the hand they 

 frequently open their mouths widely for some seconds. Mr. Butler 

 has never seen this frog enter water of its own accord, and he 

 suspects very large ova (^ inch in diameter), containing tadpoles 

 with the hind limbs and tail well developed, which he found 

 under damp moss on tree-trunks, to belong to it. 



4. Megalophrys MAJOR, n, n. (Plate XXIII.) 



Xenophrys gigas Jerdon, Proc. As. Soc. Beng. 1870, p. 85, and 

 in Anders. Proc. Zool. Soc. 1871, p. 200. 



Xeno2yhrys monticola, part., Andei-s. 1. c. ; Bouleng. Oat. Batr. 

 Ecaud. p. 44] (1882). 



1 1xalus lateralis Anders. Journ. As. Soc. Beng. xl. 1878, p. 29, 

 and Anat. Zool. Res. Yunnan, p. 844, pi. Ixxviii. fig. 5 (1879). 



Lejjtobrachiummoiiticola, Tpart., Bouleng. Ann. Mus. Genova, (2) 

 vii. 1889, p. 720, Faun. Ind., Rept. p. 510 (1890), and Ann. Mus. 

 Genova, (2) xiii. 1893, p. 344. 



Tongue entire or feebly nicked behind. Vomerine teeth in two 

 small groups on a line with the posterior border of the choanse. 

 Head moderate, more strongly depressed than in the preceding 



