OCR Text |
Show 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 tubercle 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. Unfortunately, I have no knowledge from what part of the world the individual here described was obtained. inches. Extreme length from end of snout to anus 2 Length from end of muzzle to anterior angle of eye .. Breadth between the eyes (their anterior angles) .. .... Length of the aperture of the eye Antero-posterior diameter of the tympanum Vertical diameter of the tympanum Breadth between the two posterior angles of the mouth . Length from symphysis to mid point between said angles from shoulder to elbow . . .. from elbow to carpus Extreme length of pectoral limb 1 Length of first digit of second digit of third digit of fourth digit from groin to knee ... of tibia 1 Of tarsus of first toe , v...-. i-.- . of second toe of third toe of fourth toe of fifth toe 45 38 53 30 27 27 96 79 47 58 58 35 27 48 32 96 10 53 22 30 50 74 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 disposed ; 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 |