262 ENGYSTOMATID^E. 



The tibio-tarsal articulation reaches the tip of the snout, or a 

 little beyond ; tibia 4 to ^ length of head and body. Skin smooth. 

 Brown or reddish above, with dark broun spots or symmetrical 

 markings, or with rather indistinct chevron-shaped darker and 

 lighter lines ; a light vertebral line sometimes present ; sides of 

 head and body dark brown or black ; limbs \>'ith more or less 

 distinct dark and light cross-bars ; anal region blackish ; lower 

 parts purplish buff. Iris golden. Male with a subgular vocal 

 sac. 



From snout to vent 23 millim. 



Tonkin, Tenasserim, Siam, Malay Peninsula, Sumatra, Java, 

 Moluccas. Recorded from Penaug, Perak, Ehaman, Kedah, 

 Kelantau, and Malacca. 



riower describes this as a very active frog, at times taking very 

 sudden, long hops like a grasshopper, at others using its dilated 

 digits in climbing like a true tree-frog. 



281. Microhyla annectens. 



Bouleng. Ami. & Mag. Nat. Hist. (7) vi, p. 188 (1900); A. L. 

 Eutler, Jouni. Nat. Hist. See. Bombay, xv, p. 389 (190*4). 



Habit slender. Snout rounded, as long as the orbit. Fingers 

 and toes moderately slender, the tips dilated into rather large 

 disks; first finger much shorter than second: toes hal f- webbed ; 

 subarticiilar tubercles feebly prominent; a very small inner meta- 

 tarsal tubercle. Hind limb remarkably long, the tibio-tarsal 

 articulation reaching far beyond the tip of the snout ; tibia |- 

 length of head and body. Skin smooth. Brown or pinkish above, 

 with symmetrical blackish light-edged markings, a large one on 

 the back being produced to between the eyes, where ic expands 

 into a transverse bar; side, from the shoulder to the lumbar 

 region, black, w ith sharply defined upper outline ; an oblique 

 whitish streak from the eye to the base of the fore limb ; a 

 blackish spot at the knee, a dark cross-bar on the thigh, another 

 on the femur, and a third on the tarsus; lower parts whitish, 

 ■or closely marbled with dark brown. 



Prom snout to vent 18 millim. 



This frog was discovered by Mr. A. L. Butler on the edge of a 

 small pond in jungle on the Larut Hills, at about 4000 feet 

 elevation ; it has also been found at the entrance of the Batu 

 Caves, Selangor. It is diurnal and a good sx^immer. It has 

 recently been recorded from Java by Van Kampen, in M. Weber's 

 Zoo\. Ergebn. iv, p. 404 (1907), and a specimen from the Kidi 

 District, Sarawak, presented by Mr. C. J. Brooks, is in the British 

 Museum. 



