1868.] PACHYBATRACHUS ROBUSTUS. 559 



the root of the first finger. The pelvic limb, though elongated, as 

 in all Frogs of ranoid habit, is yet remarkable for its short tarsus, 

 which does not quite equal half the length of the tibia. 



The toes are well webbed, the membrane extending nearly to the 

 ends of the digits, but nevertheless being strongly emarginated. 

 There is no shovel, but a very small yet distinct tubercle at the base 

 of the first toe, and a scarcely noticeable rudiment of a second tu- 

 bercle at the base of the fourth toe. There are no other tarsal 

 tubercles whatever. The skin over the whole body is smooth, with 

 numerous flat warts on the undersides of the thighs. The cephalic 

 derm is not ossified. The colour of the specimen is now dark brown 

 above, lighter beneath. A black line extends along each side of the 

 back from the eye to the anus ; and there are black markings on the 

 limbs, and indications of spots in the middle of the back. Unfor- 

 tunately, I have no knowledge from what part of the world the in- 

 dividual here described was obtained. 



inches. 



Extreme length from end of snout to anus 2'45 



Length from end of muzzle to anterior angle of eye .... '38 



Breadth between the eyes (their anterior angles) '53 



Length of the aperture of the eye '30 



Antero-posterior diameter of the tympanum "27 



Vertical diameter of the tympanum '27 



Breadth between the two posterior angles of the mouth . '96 

 Length from symphysis to mid point between said angles '79 



from shoulder to elbow '47 



from elbow to carpus '58 



Extreme length of pectoral limb 1 "58 



Length of first digit '35 



of second digit '27 



of third digit -48 



of fourth digit -32 



from groin to knee •96 



of tibia 1-10 



of tarsus "53 



of first toe '22 



of second toe '30 



of third toe "50 



of fourth toe "74 



of fifth toe -47 



The generic and specific characters will be as follews : — 



Pachybatrachus, g. n. Ranidarum. 



No digital disks ; maxillary teeth, but no vomerine teeth ; sacral 

 vertebra not dilated ; no parotoids or lumbar glands, but a glandular 

 fold on each side of the body ; fingers quite free, and normally dis- 

 posed ; toes webbed ; one small tarsal tubercle at base of first toe, 

 and a minute rudiment at the base of fourth toe ; tarsus less than 

 half the length of tibia ; tongue deeply notched, and free behind ; 



