408 COIXTBEID^. 



q. Yg. (Sc. 23 ; V. 203 ; A. 2 ; Xanthus. Haslar Collection. 



C. 101). 



r. Yg. (Sc. 23 ; V. 197 ; A. 1 ; Ehodes. 0. G. Danford, Esq. 



C. 89). [P.]. 



25. Zamenis socotrs. 



Zamenis socotrse, GUnth. Froc. Zool. Soo. 1881, p. 463, pi. xli. 



Snout feebly projecting, obtuse. Eostral once and one third as 

 broad as deep, the portion visible from above measuring one fourth 

 to one third its distance from the frontal ; internasals as long as or 

 shorter than the prsefrontals ; frontal much wider than the supra- 

 ocular, once and a half as long as broad, longer than its distance 

 from the end of the snout, a little shorter than the parietals ; loreal 

 nearly twice as long as deep ; two prseoculars, separated from the 

 frontal, with a subocular below them ; two postoculars, and a subocu- 

 lar separating the eye from the sixth and seventh labials ; temporals 

 3 + 3 or 2+3 ; ten upper labials, fifth entering the eye ; four or five 

 lower labials in contact with the anterior chin-shields ; posterior 

 chin-shields longer than the anterior, but extremely narrow and 

 separated from each other by two or three series of scales. Scales 

 smooth, in 23 rows. Ventrals obtusely angulate laterally, 219-228 ; 

 anal divided; subcaudals 107-119. Head olive above; body with 

 olive, sometimes black-edged transverse bands, separated by narrower 

 yellowish or reddish interspaces ; belly yellowish or pale olive. 



Total length 860 millim. ; tail 225. 



Socotra. 



a-c. c? (V. 219; 0. 119) & ? Socotra. Prof . I. B. Balfour [0.1 

 (V. 228, 222 ; 0. 117, 107). (Types.) 



26. Zamenis algirus. 



Zamenis florulentus {non Schleg.), Gervais, Mem. Ac. Sc. Montpellier, 



ill. 1857, p. 612, pi. V. fig. 4. 



, sp., Strauch, Erp. Alg. p. 63 (1862). 



Periops algira, Jan, Elenco, p. 60 (1863), and Icon. Gin. 48, pi. iv. 



fig. 2 (1876). 

 Zamenis (Periops) algirus, Boettg. in Kohelt, Reis. Alg. Tunis, p. 459 



(1885). 

 — — algirus, Bouleng. Tr. Zool. Sac. xiii. 1891, p. 147; Konig, Sitzb. 



Niederrhein. Ges. Nat. 1892, p.; Anders. Proc. Zool. Soc. 1892, 



p. 19. 



Snout feebly projecting, obtuse. Eostral slightly broader than 

 deep, just visible from above ; internasals shorter than the pre- 

 frontals ; frontal anteriorly considerably broader than the supra- 

 ocular, about once and a half as long as broad, as long as or a little 

 longer than its distance from the end of the snout, shorter than the 

 parietals ; loreal a little longer than deep ; one praeocular, in con- 

 tact with the frontal, with a subocular below it ; two postoculars 

 and a subocular ; temporals 2 + 3 ; nine upper labials, fifth or sixth 

 usually entering the eye, but sometimes separated by an additional 



