44, PACHTDACTYLUS. 201 



Synopsis of the Species. 



I. Dorsal scales intermixed with larger tubercles. 



A. Dorsal tubercles keeled, not conical. 



Dorsal tubercles strongly keeled ; digits 



with eight to ten transverse lamellae 



inferiorly 1. bibronii, p. 201. 



Dorsal tubercles feebly keeled ; digits 



with five or six transverse lamellae 



inferiorly 2. capensis, p. 202. 



Dorsal tubercles strongly keeled ; digits 



with four or five transverse lamellae 



inferiorly 3. formosus, p. 203. 



Dorsal tubercles feebly keeled ; digits 



with four transverse lamellae in- 

 feriorly 9. mentomarginatus, 



B. Dorsal tubercles conical. LP' 



Head-scales conical ; abdominal scales 



granular, subconical 4. rugosus, p. 204. 



Head-scales simply convex ; abdominal 



scales imbricated 5. oshaughnessyi, p. 204. 



C. Dorsal tubercles distinguished from the granules only by 



their larger size. 



Conical tubercles on the tibia 8. maculatus, p. 206. 



II. Dorsal scales equal. 



Digits with four or five transverse 



lamellae inferiorly ; scales small. ... 6. ocellatus, p. 205. 

 Scales on the snout three or four times 



as large as those on the back of the » 



head 7. punctatus, p. 20G. 



Digits with three transverse lamellae 



inferiorly ; snout very short., hardly 



as long as the diameter of the orbit . 10. mariquensis, p. 207. 



1. Pachydactylus bibronii. 



Tarentola bibronii, Smith, III. S. Afr., Rept. pi. 1. fig. 1. 

 Pachydactylus bibronii, Smith, I. c. Errata ; Peters, Reise n. Mossamh. 



iii. p. 25. 

 Homodactylus tnrneri, Ih-ay, Proc. Zool. Sac. 1864, p. 59, pi. ix. fig. 2. 

 bibronii, Gray, Proc. Zool. Soc. 1865, p. 612. 



In general habit similar to Tarentola mauritanica. Snout obtuse, 

 convex, longer than the diameter of the orbit ; cheeks swollen. 

 Ear-opening narrow, vertical. Body depressed. Limbs stout, short ; 

 digits short, considerably broader at the extremity than at the base, 

 the dilated part with eight to ten lamellae inferiorly. Tail rather 



