Ereinias. 315 



From end of snout to vent 55 luillim. : tiiil 89 ; fore limb 22 ; hind 

 limb 36. 



This species is based on a single specimen from Kelif, East 

 Bokhara, preserved in the Petrograd Museum, which may be merely 

 an aberrant E. velox. More specimens ai'e I'equired to estaldish the 

 validity of E. hedriaijiv, which I regard as extremely doubtful. 



24. EREMIAS NIKOLSKII. 



Eretnias nikolskii, Bedriaga, in Nikolsky, Herp. Ross. p. 478 (1905), 

 Ann. Mus. Zool. St. Pctersb. x, 1907, p. 233, and Wiss. Res. Prze- 

 walski Reis., Amph. Rept. p. 536, pi. viii, fig. 6 (1912) ; Bouleng. 

 Journ. Zool. Res. iii, 1918, p. 7. 



Body rather strongly dejjressed. Head depressed, IJ times as long- 

 as broad, its length 4| times in length to vent; snout rather long, 

 ol)tusely pointed, with the nasals scarcely swollen, with very feeble 

 concavity above, extending to the frontal shield ; cauthus rostralis 

 obtuse, loreal region feebly concave. Pileus twice as long as broad. 

 Neck narrower than the head. Hind limb not reaching the axil; foot 

 slightly longer than the head ; toes slender. 



Upper head-shields smooth; nasals in contact l)eliind the rostral, 

 the suture between them about J the length of the frontonasal, which 

 is broader than long ; prefrontals longer than broad, forming a median 

 sulure; frontal a little shorter than its distance from the end of the 

 snout, 1 J times as long as broad, | of its lateral Ijorder in contact 

 with the large supraoculars ; parietals longer than broad ; interparietal 

 smaller than the frontoparietals ; no occipital. Two large supra- 

 oculars, ])receded Iw 3 small plates and followed liy one small one ; 

 the first of the two large supraoculars as long as the second and longer 

 than its distance from the second loreal ; a series of granules between 

 the supraoculars and the superciliai'ies. Rostral 1^ times as broad as 

 deep ; three nasals, the lower just touching the rostral, resting on the 

 two or three first upper labials ; anterior loreal deeper than long, 

 shorter than the second ; subocular bordering the mouth, between 

 the 5th and 6th or 6tli and 7th upper labials ; temporal scales hexa- 

 gonal, smooth ; tympanic shield present ; no auricular deuticulation. 

 Lower eyelid opaque. 



5 pairs of chin-shields, the 3 anterior in contact in the middle ; 

 23 gular scales in a straight line between the symphysis of the chin- 

 shields and the median collar-plate ; gular fold distinct. Collar 

 curved, free, serrated, composed of 10 large plates. 



