280 PELOBATID.^. 



fills the air in tbe eA'eiiings ; but it simulates so closely the dead 

 leaves among which it lies, that it is difficult to find. "When 

 pairing, the male clasps the female round the lumbar region. 

 Called " Katak bertandok " (horned frog) by Malays throughout 

 the Peninsula. 



298. Megalophrys longipes. 



Bouleiio-. P. Z. S. 1885, p. 850, pi. Iv ; Giiiith. Ami. & Mag. Nat. 

 Hist. (5) XX, p. 316 (1887) ; A. L. Butler, Journ. Nat. Hist. Soc. 

 Bombay, xv, p. 400 (1904); Robinson. Journ. Fed. Malay 

 States Mus. i, p. 29 (1905) ; Bouleno-. P. Z. S. 1008, p. 415. 



Tongue feebly nicked behind. Vomerine teeth in two smalt 

 groups just behind the level of the choanse. Head moderate, much 

 depressed, once and ^ as broad as long ; snout obliquely truncate^ 

 projecting beyond lower jaw, nearly as long as eye ; canthus 

 rostralis sharp ; loreal region vertical, concave ; interorbital space 

 concave, as broad as or a little broader than upper eyelid ; tym- 

 panum distinct, f to | diameter of eye. Pingers slender, feebly 

 swollen at the end, first as long as or a little longer than second. 

 Toes long and slender, feebly swollen at the end, with a slight 

 rudiment of web ; no subarticular tubercles ; no distinct meta- 

 tarsal tubercle. Tibio-tarsal articulation reaching beyond tip of 

 snout ; tibia f to f leugth from snout to vent ; foot shorter than 

 tibia. Skin smooth above, with small warts on the flanks, and 

 two pairs of delicate glandular folds originating on the scapular 

 region and converging posteriorly ; a strong fold from eye ta 

 shoulder ; a short horn-like tubercle on outer edge of upper eyelid ; 

 lower parts smooth. Ohve-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 

 brown, 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 markings. Male with an 

 internal vocal sac. 



Prom snout to vent 65 millim . 



Only known from the mountains of Perak, between 3000 and 

 4500 feet, and from Gunong Angsi, Negri yembilan, at 2600 ft. 

 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 fotind under damp moss in tree-trunks, to belong to it. 



