1908.] BATRACHIANS OP THE GENUS MEGALOPHRYS. 415 



Fore limb 54 74 millim. 



Hand 20 31 



Hindlimb 96 134 



Tibia 30 42 „ 



Foot 29 40 „ 



Known from the Malay Peninsula (Penang, Perak), Sumatra, 

 Borneo, and the Katuna Islands. 



The above description is almost a repetition of that of M. mon- 

 taiia, so closely are these species allied to each other. As I 

 mentioned in 1882, the only important diS'erence between the two 

 resides in the greater length of the palpebral horn-like appendage, 

 and the presence of a similar appendage on the tip of the snout in 

 M. nasuta. To this may be added the somewhat more anterior 

 position of the vomerine teeth in J/, nasuta. 



Dr. H. O. Forbes has observed the frog to pair, in Sumatra*, 

 on the banks of streams, the mal^ embracing the female round 

 the lumbar region. Recently transformed young, some with 

 remains of the larval tail, measuring 15 to 17 millim. from snout 

 to vent, were obtained in Penang by Capt. Flower ; the palpebral 

 and rostral appendages are absent in three very young specimens, 

 and I do not see how they can be distinguished from M. montana 

 at a similar stage of development. 



3. Megalophrys longipes. 



Megalo'phrys longipes Bouleng. Proc. Zool. Soc. 1885, p. 850, 

 pi. Iv. ; Giinth. Ann. & Mag. N. H. (5) xx. 1887, p. 316 ; A. L. 

 Butler, Journ. Bombay N. H. Soc. xv. 1904, p. 400. 



Tongue feebly nicked behind. Vomerine teeth in two small 

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

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

 in profile, projecting beyond lower jaw, nearly as long as eye ; 

 canthus rostralis sharp ; loreal region vertical, concave ; nostril 

 equally distant frora eye and from end of snout ; inter- 

 orbital space concave, as broad as or a little broader than upper 

 eyelid; tympanum distinct, -f to |- diameter of eye, its diameter 

 equal to or less than its distance from eye. Fingers slender, 

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

 second, which measures about f length of third ; no subarticular 

 tubercles ; no distinct metacarpal tubercles. Toes long and 

 slender, feebly swollen at the end, with a slight rudiment of 

 web ; no subarticular tubercles ; no distinct metatarsal tubei'cle. 

 Tibio-tarsal articulation reaching beyond tip of snout, knee reach- 

 ing axil or shoulder ; tibia f to |- length 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, the outer extending to 

 the sacral region ; a strong fold from the eye to the shoulder ; a 



* 'A Naturalist's Wanderings in the Eastern Archipelago ' (London, 1885), p. 154„ 



Proc. Zool. Soc— 1908, No. XXVII. 27 



