REPTILES. 31 



Classis— AMPHIBIA. 



Ordo— ANOURA. 



Familia— RANID^l. 



Genus Rana. 



Rana Delalandii. Bibr. 



Plate XVI.— Fig. 1. 



Dentibus palatinis in serie transversd, medio interrupts, dispositis ; membris posterior- 

 ibuscorpore cum capitedupld longioribus ; pedibus posticis gracillimis, semipalmatis . 



Rana Delalandii, Bibr. Hist. Kept. VIII. p. 388. 



Description. — Head elongate, depressed. Eyes large, not prominent. Tympanum nearly round. 

 Palatine teeth in two simple series, commencing at the inner side of the anterior margin of the 

 posterior nares, and extending towards each other in a transverse direction, leaving between 

 them a space of about half the length of each. Tongue not quite as long as it is broad. Body 

 somewhat depressed, and with the head forming an almost uninterrupted ellipse. Skin of the 

 back, with several small longitudinal folds. Anterior legs, when placed against the sides, 

 reaching to the thigh. Fingers very slender, and of nearly equal length. Posterior limbs 

 fully twice as long as the head and body. Toes extremely long and slender, and connected 

 by a membrane by about half their length. 



Colour. — The general colour of the upper parts is a rich brown, with darker brown and white 

 markings. A white median fascia extends the whole length of the head and body ; another 

 fascia of the same colour and of very irregular figure on each side, passes backwards and 

 downwards from above the shoulders, and loses itself in the pale colour of the abdomen. 

 There are several smaller white lines and spots, and others of a dark rich brown, particularly a 

 large mark of the latter colour behind the eye, including the tympanum. The thighs and 

 legs arc elegantly banded with similar colours. The under side is whitish. 



DIMENSIONS. 



In. Lines. 



Length of the head and body 1 8 



of anterior extremities 1 1 



of posterior ditto 3 7 



This species was first discovered at the Cape of Good Hope by M. Delalande, 

 and named after him by Mons. Bibron. Mr. Darwin found it in the same locality. 

 It is now figured for the first time. 



