19. AGAMA. 367 



40. Agama caucasica. 



Stellio caucasicus, Oray, Cat. p. 256. 



Lacerta muricata (ko« Shaw), Pall. Zoogr. JRoss.-As. iii. p. 20. 



stellio (mora i.), Pall. I. c. p. 24. 



Stellio -vulgaris {non Lati:), MenHr. Cat. Pais. p. 64. 



caucasicus, Eichiv. Zool. Spec. p. 187, and Faun. Casp.-Cauc. 



p. 80, pi. xiii. figs. 1-8; A. Hum. Cat. MM. Pept.Tp. 105, and 

 Arch. Mus. -viii. p. 578 ; Be Fil. Viagg. Pers. p. 352 ; Blanf. E. 

 Persia, p. 322, pi. xx. fig. 1. 



persicus, Anders. Pi-oc. Zool. Soc. 1872, p. 382, fig. 



Head much depressed ; snout not longer than the diameter of the 

 orbit ; nostril lateral, below the canthus rostralis, slightly tubular. 

 Upper head-scales smooth ; occipital not enlarged ; small conical 

 spinose scales on the side of the head near the ear, and on the neck ; 

 ear entirely exposed, larger than the eye-opening. Throat strongly 

 plicate ; no gular pouch. Body much depressed, with a very in-' 

 distinct lateral fold; nuchal and latero-dorsal scales very small, 

 granular ; vertebral region with enlarged flat, feebly keeled, rather 

 irregular scales ; llanks with enlarged, strongly keeled or spinose 

 scales ; no nuchal denticulation ; ventral scales smooth, distinctly 

 smaller than the enlarged dorsals. 150 to 1 60 scales round the middle 

 of the body. Limbs strong, with compressed digits ; the scales on the 

 upper surface of limbs much enlarged, strongly keeled, generally 

 spinose ; fourth finger slightly longer than third ; fourth toe a little 

 longer than third, fifth extending beyond first. Tail rounded, 

 depressed at the base, covered with rather large spinose scales 

 arranged in rings, two rings forming a distinct segment ; the length 

 of the tail does not equal quite twice the distance from gular fold 

 to vent. Male with a large patch of anal pores and an enormous 

 patch of ventral pores. Olivaceous above, with round yellowish 

 black-edged spots, the black frequently forming a network ; vertebral 

 region yellowish ; limbs with more or less distinct yellowish cross 

 bars ; lower surfaces yellowish in the female, blackish in the 

 breeding male. 



Total length 312 miUim. 



Head 33 



Width of head 30 



Body 99 



Fore limb 64 



Hind limb 97 



Tail 180 



Caucasus to Persia. 



a. Hgr. iS . Elizabethpol. 



b-c. (S & hgr. Persia. Marquis G. Doria [P.]. 



d-h. cJ , S , & yg- Kohrud, N. of Isfahan. W. T. Blanford, Esq. [C.J. 



