460 Annals of the South African Museum. 



Granules on hinder part of head intermixed with larger tuber- 

 cles; dorsal tubercles large, strongly keeled, often trihedral; 



body cross-barred P . formosiis . 



No enlarged tubercles on hinder part of head ; dorsal tubercles 



small, more or less strongly keeled P. affinis. 



h. First upper labial entering the nostril ; dorsal 



tubercles large, feebly keeled P. weberi. 



B. Dorsal tubercles large, conical ; ventral scales granular- 

 conical ; tail with whorls of spine-like tubercles . . . . P. rugosus. 



C. Dorsal tubercles small, distinguished from the granules 



only by their larger size, sometimes conical P. maculatus. 



II. Dorsal scales equal. 



A. Head very convex ; rostral widely separated from nostril. 



4 or 5 transverse lamellaj under the median digits ; rostral 

 shield not or but slightly broader than deep ; dorsal scales 



convex, not much smaller than ventrals P. ocellatus, 



5 or 6 lamellae under the median digits; rostral shield much 



broader than deep P. amocnus. 



3 or 4 transverse lamellae under the median digits ; rostral 

 shield much broader than deep ; dorsal scales convex, not 



smaller than ventrals P. mariquensis, 



4 transverse lamellae under the median digits ; rostral shield 

 much broader than deep ; dorsal scales flat, much smaller than 



ventrals P. punctatus. 



B. Head more or less strongly depressed ; 5 or 6 transverse 

 lamellae under the median digits. 



Kostral nearly twice as broad as deep, entering the nostril ; snout 



a little longer than the orbit P. inircelli. 



Kostral but little broader than deep ; snout much longer than the 



orbit P. served. 



1. P. BIBRONI. 



Tarentola hihronii, Smith, 111., Kept. pi. i. fig. 1, 



Pachydactylus hihronii, Bouleng. Cat. Liz. i. p. 201. 



South Africa, northwards to Benguella and Mozambique. 



Cape Colony: Little Namaqualand (Moffat, W. C. Scully, W. H. 

 Turle, Schlechter, Krapohl) ; O'okiep, Little Namaqualand (G. 

 Worden); Garies, Little Namaqualand (Dr. E. Broom); Cape 

 Flats (E. Smith) ; Matjesfontein, Worcester (Dr. W. P. van de 

 Merwe, Lightfoot) ; Burghersdorp (Dr. D. E. Kannemeyer) ; 

 Clanwilliam (Schlechter) ; Calvinia (Schlechter) ; Hanover 

 (C. S. Cronwright-Schreiner) ; Graaff-Eeinet (Paynter) ; Mon- 

 tague (Purcell) ; Caledon (Purcell) ; Swellendam (Purcell) ; 

 Bredasdorp (Fry) ; Bechuanaland (S. Blackbeard). 



2. P. L^viGATUs, J. G. Fischer, Jahrb. Hamb. Wiss. Anst. v., 1888, 

 p. 15, pi. ii. fig. 3. 

 German South- West Africa ; Little Namaqualand. 

 Little Namaqualand (Schlechter). 



