1920.] G. A. BouLENGER : Frogs of the Genus Rana. 39 



10. Rana grunniens. 



Ra>ia grunniens, part., Daud., Hist. Rain. Gren. Crap. p. 65, pi. xxi (1803) 



and Hist. Rept. VI II, p. 127 (1803). 

 Raiia siibsaltans, (Iraxenh., Delic. Mus. VratisL, p. 35, pi. vii (1829). 

 Rana hydromedusa (Kuhl), Tschudi, Class. Batr. pp. 40, 80 (1838). 

 Rana grunniens, Duni. et Bibr., Erp. Gen. VIII, p, 380(1841); Giinth., 



Cat. Batr. Sal. p, 10 (1858) ; Bouleng-., Cat. Batr. Ecaud. p. 23 (18S2), 



Tr. Zool. Soc XX, 1914, p. 239, and Ann. and Mag. N.H. (q) I, 



1918, p. 238. 

 1 Rana macrodon, Van Kampcn, .\'ova Guinea, IX (Zool.), p 458 (U)I3)- 



Vomerine teeth in long and strong oblique series behind the 

 level of the choanae. Tooth-like processes of lower jaw absent or 

 very feebly developed 



Head a little broader than long, much depressed ; snout 

 rounded, feebly projecting beyond the mouth, as long as the eye 

 or a little longer ; canthus rostralis very obtuse ; loreal region 

 very oblique, scarcely concave ; nostril nearer the tip of the snout 

 than the eye ; the distance between the nostrils equal to or a 

 little less than the interorbital width, which equals that of the 

 upper eyelid ; tympanum very distinct, h to f the diameter of the 

 eye and f to once its distance from the latter. 



Fingers rather short, with slightly swollen tips, first much 

 longer than the second, third as long as or a little longer than the 

 snout ; second and third fingers with a narrow dermal border ; sub- 

 articular tubercles moderately large, moderately prominent. 



Hind limb moderately long ; tibio-tarsal articulation reaching 

 the eye ; heels meeting when the limbs are folded at right angles 

 to the body ; tibia 3 to 3j times as long as broad, a little over 

 twice to 2j times in length from snout to vent, a little shorter 

 than the fore limb, as long as or a little longer than the foot. 



Toes with the tips dilated into small discs, webbed to the 

 discs ; subarticular tubercles rather small, moderately prominent ; 

 a short tarsal fold ; inner metatarsal tubercle narrow, feebly 

 prominent, f to 2 the length of the inner toe ; no outer tubercle. 



Skin smooth above or with small scattered warts ; a narrow, 

 short, straight glandular fold, more or less distinct from behind 

 the upper eyelid to the scapular region or the anterior part of the 

 back ; a stronger fold above the tympanum ; posterior part of the 

 upper eyelid with small warts. Lower parts smooth. 



Brown above, uniform or with darker raarblings ; a yellow- 

 ish cross-bar, edged with dark brown in front and b2huid, between 

 the eyes ; a dark canthal and temporal streak ; lips with more or 

 less distinct vertical dark bars ; limbs with or without dark cross- 

 bars. Lower parts white ; throat sometimes spotted or marbled 

 with brown. 



Male without secondary sexual characters. 



Nasals large and in contact with each other and with the 

 frontoparietals, which bear a feeble sagittal crest posteriorly ; 

 ethmoid not exposed ; zygomatic process of squamosal long, ex- 

 tending to below the eye. Omosternum forked at the base. Ter- 

 minal phalanges feebly expanded at the end. 



