850 MR. G. A. BOULENGER ON A NEW FROG. [NoV. 17, 



similis, sed plaga gutturali caerulescenti-nigra primo visu distin- 

 guenda. 



The single skin that T have as yet seen of this species is obviously 

 of Brazilian manufacture. It is strange that the species has so long 

 remained undiscovered. 



4. Description of a new Frog of the Genus Megalophrys. 

 By G. A. BouLENGER, r.Z.S. 



[Eeceived November 3, 1885.] 

 (Plate LV.) 



Megalophrys longipes, sp. n. (Plate LV.) 



Tongue pyriform, indistinctly nicked posteriorly. Vomerine teeth 

 in two small groups just behind the line of the posterior borders of 

 the choauEB. Head broader than long, much depressed ; snout 

 very short, obliquely truncate, concave above and on the sides, with 

 strong canthus rostralis ; nostril equally distant from the eye and 

 the middle of the rostral extremity ; interorbital space concave, a 

 little broader than the upper eyelid; tympanum distinct, oval, its 

 distance from the eye exceeds its greatest diameter. Fore limb 

 long and slender ; first finger extending beyond second. Hind limb 

 very long, the extremity of the femur reaching the shoulder and the 

 tibio-tarsal articulation far beyond the end of the snout ; toes 

 slender, with a slight rudiment of web, swollen at the tips ; no sub- 

 articular nor metatarsal tubercles. Skin smooth above, with small 

 warts on the flanks, and two pairs of dehcate oblique folds, converging 

 posteriorly, on the scapular region; a fold from the eye to the 

 shoulder, passing above the tympanum ; upper eyelid with a small 

 horn-hke tubercle on its outer edge ; lower surfaces smooth. Olive- 

 brown above, sides of head speckled with blackish, and with oblique 

 yellowish vertical bars; digits edged with yellowish and with 

 yellowish cross bars ; hinder side of thighs, upper half reddish 

 brown, lower blackish brown, the two colours sharply separated ; 

 lower surfaces pale reddish brown, largely marbled and spotted with 

 dark brown. From snout to vent 60 millim. 



A single specimen, apparently a female, from the mountains of 

 Perak, Straits of Malacca, at a height of 3300 feet ; presented to the 

 Natural History Museum by L. Wray, Esq., Curator of the Perak 

 Museum. This species must be very rare, as the specimen described 

 is the only one obtained by Mr. Wray during a residence of about 

 three years on the hills. 



EXPLANATION OF PLATE LV. 



a. Upper view of Megalophrys longipcs, size of life. 

 h. Lateral view of head. 



c. Lower view of head and pectoral region. 



d. Open moutli. 



