91 



the eye, very distinct, its diameter equal to the width of the 

 eye or hardly smaller. Tips of fingers and toes blunt; first 

 finger usually as long as, rarely extending beyond second; 

 third and fifth toe of equal length; toes not quite '/a to ^3 

 webbed; subarticular tubercles very small, single; two mode- 

 rate metatarsal tubercles, the outer one a little smaller than the 

 inner one; no tarsal fold; the heel reaches the axil, the tarso- 

 metatarsal articulation the tympanum or the eye. 



Upper parts with very prominent, conical tubercles; paro- 



Fig. 9. Bufo biporcatus Gravh., X ^^ 



toids very prominent, small, subtriangular or oval ; strongly 

 granulate beneath. 



Brownish above, marbled with darker; beneath lighter, more 

 or less spotted with brown. Length 79 mm. 



Male with a subgular vocal sac and in the breeding time a 

 black copulatory excrescence at the outer side of the first finger. 



Tadpole. — The tadpoles agree in every point with those 

 of B. melanostictus ; only the two lower series of teeth of the 

 lower lip are perhaps somewhat less different in length. 



Habitat: Sumatra (Mt. Simbolon ; Talu; Gunung-Sahilan ; 

 Ringat; Palembang!); Borneo (Mt. Kina Balu ; Baram riv. ; 



