744 MR. G. A. BOULENGER ON TUE SPECIES OF [June 21, 



AcANTHODACTYLUs CAPENSis, Smith, 111. Zool. S. Afr. pi. 39 ; 

 Gray, Cat. p. 37. 



Two specimens, presented by Sir A. Smith, are in the British 

 Museum. From these, I see that it is not an Acanthodactylus, but 

 a Scapteira, as has been suspected by Dr. Peters ^ I am also con- 

 vinced that Podarces (Scapteira) cuneirostris, Strauch ^, is not 

 specifically distinct from A. capensis. 



AcANTHODACTYLus SAViGNYi (Aud.), Gray, Cat. p. 37. 



This species is not the Lacerta savignyi, of Audouin, which I have 

 not yet succeeded in identifying, but the same as that described as 

 Zootoca deserti by Giinther, aud as Acanthodactylus hedriagai by 

 Lataste. The name deserti, Gthr., though prior to that of hedriagace, 

 must be cancelled, as there is a Lacerta deserti, Milne-Edwards, 

 which is also an Acanthodactylus. 



Acanthodactylus inornatus. Gray, Cat. p. 38. 

 Is identical with A. scutellatus. 



I am acquainted with ten species of Acanthodactylus. Their 

 synonymy and principal characters are as follows : — 



1. Acanthodactylus scutellatus. (Plate LXIII. fig. 2.) 

 Lacerta scutellata, Aud. Descr. Egypte, Rept. (Suppl.) i. p. 172, 



pi. i. f. 7 ; M.-Edw. Ann. Sc. N. xvi. pp. /i & 85, pi. vi. f. 3. 



1 Lacerta olivieri, Aud. /. c. p. 1/4, pi. i. fig. 11. 



Lacerta dumerilii, M.-Edw. /. c. pp. 76 & 8.5, pi. vii. f. 9 ! 



Scapteira inornata, Gray, Ann. Nat. Hist. i. p. 280. 



Acanthodactylus scutellatus, Dum. and Bibr. Erp. Gen. v. p. 272; 

 Gray, Cat. Liz. p. 37 ; Strauch, Mem. Ac. Sc. St. Petersb. (7) iv. 

 no. 7, p. 30; Bouleng. Bull. Soc. Zool. France, 1878, p. 185. 



Pliotophilus scutellatus, Fitz. Syst. Rept. i. p. 20. 



Acanthodactylus inornatus, Gray, Cat. Liz. p. 38. 



Snout acutely pointed. Three palpebral shields. Infraocular not 

 reaching the lip. Front edge of the ear strongly toothed^. Scales 

 granular, smooth on the front part of the back, rhomboidal, keeled 

 on the remaining part. Ventral plates not broader than long, in 

 14-16 longitudinal series. Preeanal plates subequal. Digital denti- 

 culations very long. 



Hab. North Africa ; Senegal (Paris Mus.) ; Syria (British Mus. ; 

 Brussels Mus.). 



2. Acanthodactylus boskianus. (Plate LXIV. fig. 2.) 

 Lacerta boslianus, Daud. Eept. iii. p. 188, pi. xxxvi. f. 2 ; Aud. 



loc. cit. p. 174, pi. i. f. 10. 



Lacerta aspera, Aud. loc. cit. pi. i. f. 9. 



Acanthodactylus boshianus (Fitz.), Wiegm. Herp. Mex. i. p. 10 ; 



1 Monatsb. Berl. Ac. 1869, p. 61. 



2 Biill. Ac. St. Petersb. xii. (1867) p. 318. 



^ This character, however, in this aud other species, is subject to a certain 

 amount of variation, and must be used with caution. 



