DESCRIPTION OF HELEOPHBYNE NATALENSIS. 477 



Mariannhill, and the survivors did not thrive in the confine- 

 ment of a glass jar. They could attach themselves so firmly 

 to the glass by means of their oral sucker that it was most 

 difficult to remove them." 



With the material at hand, which consists of only one young 

 frog and several tadpoles, it is not possible to give as complete 

 a diagnosis of the species as is desired ; but there are certain 

 well-marked differences between this species and H. regis 

 Heu'itO 



Heleophryne natalensis .s-p. n. 



Young Frog. — Ventral surface is smooth, while in regis it 

 is granular. 



The tibio-tarsal articulation of the adpressed hind limb 

 reaches the eye, while in regis it reaches the tip of the 

 snout, or between the eye and the tip of the snout. 



The fourth finger is considerably longer than the second, 

 the latter not extending as far as the last phalangeal articula- 

 tion of the fourth finger, while in regis the fourth finger is 

 only a little longer than the second, which extends a little 

 beyond the last phalangeal articulation of the fourth finger. 

 The discs at the tips of the fingers are a little smaller than 

 those of regis. 



Tympanum is hidden in a strong sigmoidly curved fold 

 passing from the eye to the shoulder. 



Fingers free. Toes a trifle more than half webbed. 



A light streak occurs between the eyes, bordered behind by 

 a black band ; the back has numerous rounded, blackish spots 

 with white centres ; upper lip on its anterior half bears whitish 

 spots more or less vertically arranged; two or three white 

 spots are present at the angle of the jaw ; limbs have indis- 

 tinct dark cross-bars ; belly is pale in the centre, throat and 

 under surface of limbs are dark. 



Total length from snout to vent 32 mm., but the species 

 probably reaches a much greater size. 



* Hewitt, J., 'Annals of the Transvaal Museum,' vol. ii, j). 45 : 

 description of H. regis. 



VOL. 2, PART 4. 32 





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