468 On Two new Frogs from Lake Tanganyika. 



long ; snout rounded, scarcely projecting, slightly longer 

 than tlie diameter of the orbit ; canthus rostralis obtuse ; 

 lorcal region very oblique and slightly concave; nostril 

 equally distant from the eye and the tip of the snout ; inter- 

 orbital space a little narrower than the upper eyelid ; tympa- 

 num very distinct, three fourths the diameter of the eye. 

 Fingers pointed, first longer than second ; toes slender, 

 jjointed, three-fourths webbed; subarticular tubercles small; 

 a small elliptical inner metatarsal tubercle measuring one 

 third the length of the inner toe. Tibia as long as the fore 

 limb ; tibio-tarsal articulation reaching the tip of the snout 

 or a little beyond. Skin smooth ; a narrow glandular dorso- 

 lateral fold. Olive above ; sides of body and limbs vermicu- 

 late or marbled with blackish ; a dark temporal spot ; a light 

 streak from below the eye to the angle of the mouth ; limbs 

 with dark cross-bands ; lower parts white, throat spotted or 

 marbled with brown. Male with internal vocal sacs. 



From snout to vent 80 millim. 



Two specimens. 



Rana pulchra. 



Vomerine teeth in two small, oblique, oval groups between 

 the choanse. Head large, broader than long; snout obtusely 

 pointed, slightly projecting, as long as the diameter of the 

 orbit; canthus rostralis obtuse; loreal region very oblique 

 and deeply concave ; nostril a little nearer the eye than the 

 end of the snout ; interorbital space a little narrower than 

 the upper eyelid ; tympanum distinct, two thirds the diameter 

 of the eye. Fingers obtuse, first not extending beyond 

 second ; toes obtuse, slightly webbed at the base ; subarti- 

 cular tubercles strong ; inner metatarsal tubercle large, 

 compressed, shovel-shaped, as long as the inner toe ; a 

 rather indistinct outer metatarsal tubercle. The tibio-tarsal 

 articulation reaches the eye, the tarso-metatarsal the tip 

 of the snout. Upper parts with symmetrical ridges fol- 

 lowing the arrangement of the spots ; lower parts smooth. 

 Pale greyish above, with dark brown symmetrical spots with 

 daiker and lighter edges ; a light vertebral line, crossing a 

 light cross-bar on the interocular space ; a V-shaped light 

 marking on the back of the head, the ends of the branches 

 extending to the upper eyelids ; loreal region blackish, with a 

 light vertical bar between the eye and the nostril ; limbs 

 cross-barred; lower parts white. 



From snout to vent 32 millim. 



A single specimen. 



