1920.] G. A. BouivENGER : Frogs of the Genus Rana. 21 



the vars. lessonae and chinensis of R. esculenta, and that this fact 

 should be borne in mind by those who appeal to such ethological 

 departures from the normal as an argument in favour of specific 

 distinction. 



Measurements in millimetres. 



From snout to vent 

 Head 



Width of head 

 Snout 

 Eye 



Interorbital width 

 Tympanum . . 

 Fore limb 

 First finger . . 

 Second finger 

 Third finger . . 

 Fourth finger 

 Hind limb 

 Tibia 

 Foot 



Third toe . . 

 Fourth toe . . 

 Fifth toe 

 First toe 



Inner metatarsal tu- 

 bercle . , . . 7 6 6 6 5 7 7 



I. Benares. 2 — 3. Madras. 4. Malabar. 5 — 7. Ceylon. 



Habitat. This variety is on record from the United Provinces 

 (Benares, Agra), Orissa (Chandbally), Madras town, Malabar and 

 Ceylon. 



Var. pantherina, Fitz. 



[R. biirkilli, Annand. ; R. ntgulosa, Annand. Jiec Wiegm.). 



Differs from the typical form in the generally shorter hind 

 limb, the tibio-tarsal articulation reaching the shoulder, the tym- 

 panum, or the posterior border of the eye, the heels not or but 

 slightly overlapping, and the length of the tibia, which is less than 

 that of the fore limb, being contained 2I to 2^ times in that of 

 head and body. The inner metatarsal tubercle is blunt, and its 

 length is 2^ to 4 times in that of the inner toe, 8f to 14 times in 

 that of the tibia. 



Although usually more rounded than in the typical form, the 

 shape of the snout cannot be used for the distinction of this variety 

 since it is more pointed and prominent in some specimens from 

 China (Shanghai) than in others from India (Madras). 



The folds on the back, if present, are short, and in many cases 

 they are more correctly described as elongate warts. 



The absence of any trace of a light streak above the upper 

 lip, which is marked with vertical dark bars, one or two of which 

 may extend to the eye, also distinguishes this form; the light 

 lateral band and the vertebral streak are absent in all the speci- 

 mens examined by me. The lower parts are often spotted or 



