50 COLTJBEID^. 



Dipsas fallax, Nordm. in Demid. Voij. Buss. M4r. iii. p. 343, Sq)t. 



pi. iv. fig. 2 (1840) ; Berth, in Wagn. Heise n. Kolchis, p. 334 



(1850). 

 TarbopUs vivax, Jan, Icon. G4n. 38, pi. i. fig. 2 (18/1) ; Boettg. in 



Badde, Faun. Flor. Casp.-Qeb. p. 72 (1886). 

 vivax, part., Strauch, Schl. Muss. S. p. 194 (1873). 



Agrees in most respects "witli T. fallaoe, but parietals sliorter, 

 slightly longer than the frontal, and anal entire. Nasal semi- 

 divided ; fourth and fifth, or third, fourth, and fifth labials entering 

 the eye. Scales in 19 rows (exceptionally 21). Ventrals 203-235 ; 

 Bubcaudals 55-70. Grey above, with 35 blackish spots on the body, 

 the anterior largest and darkest ; a lateral series of smaller spots or 

 vertical bars ; lower parts blackish, with small whitish spots and 

 dots. 



Total length 650 millim. ; tail 100. 



Caucasus. 



a. S (Sc. 19 ; V. 213 ; Evlakh, Gov. Elizabethpol, 

 0. 61). Transcaucasia. 



4. TarbopMs rhinopoma. 



? Tarbophis sp.. Cope, Proc. Ac. Philad. 1862, p. 338. 



Dipsas rhinopoma, Blanf. Ann. ^ Mag. N. H. (4) xiv. 1874, p. 34, 



and Zool. E. Pers. p. 424, pi. xxviii. fig. 2 (1876) ; Boettg. in Ma'dde, 



Faun. Flor. Casp.-Oeb. p. 72 (1886). 

 Tarbophis rhinopoma, Bouleng. Journ. Bomb. N. JS. Soc. ix. ip9§f . 



p. 325. -J^',." -,.■ 



Rostral broader than deep, just visible from above^ internasa^.y ^ 

 broader than long, shorter than the praefrontalsjJfontal sligl^^. ■ 

 longer than broad, as long as its distance from t^fl^d of the Sn4^t>! t 

 a little shorter than the parietals ; nasal sei^^vid6d;'"lor|pl fes^fpe- 

 to twice and a half as long as deep, enteimg'.-the lejife ^isl^* 

 praeocular, which is in contact with tb^fro'fitsi'^'^Qrilogtoictnars; 

 temporals small, scale-like, 2 or 3+3 or 4*>'^ftfc' to Mn upper 

 labials, third, fourth, and fifth, or f(|mfti- and -fifth, XHC-'^ourth, fifth, 

 and sixth entering the eye ; four or Kitoaower lal^^3s in contact with 

 the anterior chin-shields ; posterionJ^Lhin-^sMeids very small and 

 widely separated from each other by scMaS. Scales in 23 (or 24) 

 rows. Ventrals 268-280 ; anal entire ; subcaudals 76-82. Pale 

 sandy grey above, with a dorsal series of 65 to 85 brown square or 

 transverse spots, larger than the interspaces between them, and an 

 alternating series of smaller spots on each side ; on the posterior 

 part of the body the dorsal spots may split up into two alternating 

 series ; head with small dark spots or specks ; labials dark-edged ; 

 throat white ; ventrals dark brown. 



Total length 990 miUim. ; tail 155. 



Persia, Sind. 



d (V. 268 ; 0. 77). Karman, S. Persia, W. T. Blanford, Esq. [E.l. 

 5000 ft. (One of the types.) 



b. Yg. (V. 280 ; C. 82). Sind. H. M. Phipson, Esq. [P.]. 



?« 



