456 Annals of the South African Museum. 



Digits webbed almost to the tips, covered witii small granules, 



with a faint, obtuse claw Pelmatogecko. 



II. Digits more or less dilated, with enlarged scales or lamellae 

 inferiorly. 



A. Digits with a strong claw. 



1. Digits dilated at the apex, which is furnished 

 inferiorly with two plates separated by a longitu- 

 dinal groove. 



Digits with only one pair of plates inferiorly, at the apex. . . . Plitjllodacti/lu.'i. 



Digits with one or two pairs of plates inferiorly, in addition to 



the apical pair (Ediira. 



2. Digits cylindrical or compressed at the apex, the 

 dilated part with paired lamellae inferiorly. 



Inner digit well developed ; pupil vertical Heiiiidactylns. 



Inner digit rudimental ; pupil round LijuodactyliiK. 



3. Digits entirely dilated, with a single series of lamellae 



inferiorly ; body covered with small imbricate scales Homopholis. 



B. Digits clawless, or with a very indistinct claw 



Digits strongly dilated, with transverse lamellae inferiorly, with 



a minute claw fitting in a notch of the distal lamellae . . . . Elasmodactylus. 



Digits more or less dilated, clawless, or with a very minute 



claw, the distal lamellae undivided Pachydactyltts. 



Tips of fingers slightly dilated, of toes rather narrowed ; no 



claws Colojnis. 



Digits very unequal, dilated at the apex only, clawless or with 



veiy minute claw ; eyelid distinct all round the eye . . , . . . Rhoptropus. 



1. CHONDEODACTYLUS. 



Peters, Mon. Berl. Ac, 1870, p. 110 ; Bouleng. Cat. Liz. i. p. 10. 



1. C. ANGULiFER, Peters, I.e., p. Ill, pi. — , fig. 1 ; Bouleng., I.e., 



p. 11. 

 Deserts of Cape Colony. 

 Little Namaqualand (M. Schlechter, "Whitley, E. Moffat), Ken- 



hardt (Schlechter), Touw's Eiver (A. G. Atherstone), Beaufort 



West (W. F. Purcell). 

 C. tveiri, Bouleng. P.Z.S., 1887, p. 339, distinguished by larger 



ventral scales, is probably not specifically separable from C. 



angulifer. 



2. PTENOPUS. 

 Gray, P.Z.S., 1865, p. 640; Bouleng. Cat. Liz. i. p. 15. 



1. P. GARRULUS. 



Stenodactylus garrulus, Smith, 111., Eept., App. p. 6. 

 Ptenopus garrulus, Bouleng., I.e., p. 15. 



