1908.] X£W SPECIES OF SUMATRAN TOAD 787 



Tympanum two-thirds to three-fourths diameter of the eye, 

 very distinct : cleft of the mouth extending back to the posterior 

 border of the eye. 



Fingers short, blunt ; 3rd longest, and the 1 st rather longer 

 than 2nd and 4th, which are about equal in length ; subarticular 

 tubercles single ; two moderate carpal tubercles, the inner quite 

 twice as large as the outer, both elliptical in shape. 



Hind limb moderately elongate, tibia as long as femur ; a con- 

 spicuous gland on each calf ; the tarso- metatarsal ai-ticulation 

 reaches the eye. Toes moderately long, about one-half webbed ; 

 subarticular tubercles small and single ; two small metatarsal 

 tubercles, the inner more prominent than the outer. No tarsal 

 fold. 



Upper surface covered with anastomosing wrinkles, and with 

 pores, very conspicuous and different in size. A large prominent 

 elliptical or oval parotoid gland behind the eye on each side, the 

 length of this gland contained once and a half in the length of 

 the head. The lower surface granular, granules of uniform size 

 and evenly distributed. 



Olive-brown above, with a few slight traces of darker markings, 

 in one specimen a distinct black line along the inner margin of 

 the parotoid glands. Iris bright yelloAv, towards the corners 

 thickly vermiculated with black. 



Length 82 mm. from snout to vent. 



Two females from Pulo Weh Island, ofi' N". Sumatra. 



I propose that the name Bnfo valhallce be given to the species, 

 as I was travelling on Lord Crawford's yacht ' Yalhalla ' when 

 the specimens were obtained. 



There seem to be several species very nearly allied to this toad. 

 I have compared the living examples with specimens of Bufo 

 oUvaceus Blanford, Bufo stomaticus Liitken, and Bufo ancler- 

 sonii Blgr., in the collection of the British Museum (]N'atural 

 History), with the kind help of Mr. G. A. Boulenger, F.R.S. 



The extreme prominence of the parotoid glands seems to be 

 the most mai-ked charactei'istic, and in this it differs considerably 

 from B. olivaceus, in which these glands are depressed. Another 

 diflference between these two species is to be found in the skin of 

 the upper surface ; in Bufo olivaceus it is nearly smooth, in 

 B. valhallce, on the contrary, it is wrinkle-covered and of a porous 

 consistency. 



B. stomaticus closely resembles it, but may be distinguished 

 from it by the toes being three-fourths webbed, whereas B. val- 

 hallce has them only one -half webbed. The parotoid glands in 

 B. stomctticus ai-e only nearly as long as their distance from the 

 end of the snout. 



B. anclersonii can be distinguished by the presence of a tarsal 

 fold. 



No specimen of Bufo sumatranus Peters, was available for com- 

 parison, but in that species the tymjmnum is only one-fourth the 

 width of the eye, and it is also the possessor of a tarsal fold. 



