On new Bat ntrhians from South Cameroon, 317 



or stri;e at the sides, l)ut the posterior middle has finer 

 C'oiieentric ones, in hiilf-eireles with the eone;ivity candad. 

 //. tripartitus, Ckll., shows tlie same sort of thin;(, l)ut not so 

 distinctly. It is nearly certain that ineliloti and Iripartltus 

 are races of one species. 



University of Colorado, 

 JJoiildcr, Colorado, U.S.A., 

 Jau. 11)00. 



XLI. — Descriptions of new Ditraclwins discovered by 

 Mr. G. L. Bates in South Cameroon. By G. A. BOULENGER. 

 F.U.S. 



Rana goliath. 



Vomerine teetli in two very strong oblique series, narrowly 

 separated in the middle, their outer extremities touching the 

 choanae. Head much depressed, a little broader than long; 

 snout obtusely pointed, as long as the orbit ; canthus rostralis 

 very obtuse ; hneal region deeply grooved; nostril a little 

 nearer the tip of the snout than the eye ; interorbital space as 

 broad as the uj)per eyelid ; tympanum small, hidden. Fingers 

 rather short, obtuse, bordered by a very distinct dermal toki, 

 first and second equal, fourth but slightly shorter tiian third ; 

 one large, oval, flat, subarticular tubercle under each finger. 

 Toes moderate, the tips dilated into small but very distinct 

 disk.'', which are embraced by the very broad full web ; sub- 

 articular tubercles large, oval, fiat; a flat, elliptical inner 

 metatarsal tubercle, measuring 5 its distance from the end of 

 the inner toe ; no outer tubercle ; a strong dermal fringe on 

 the outer side of the filth toe. The tibio-tarsal articulation 

 reaches the tip of the snout ; tibia as long as the foot, a little 

 more than half length of head and body. Skin finely 

 shagreened above, with small warts, especially on the sides; 

 uj)per surface of thigh and tibia with narrow longitudinal 

 glandular folds ; throat and belly with small granules ; a 

 strong curved fold from the eye to the shoulder. Dark olive- 

 brown above, with small darker spots on the body and irre- 

 gular cross-bars on the limbs; hinder side of thighs blackish, 

 dotted witii white; yellowish white beneath. 



This remarkable frog is described from a single specimen, 

 from Elulen, mea.«uring 2.00 mm. from snout to vent. A 

 still larger specimen was caught along the Kribi iiiver, 



Ann. J; Mug. JS. Hist. Ser. 7. Vol. xvii. 22 



