60. C0LT7BEK. 65 



neck with four interrupted black stripes; a dorsal series of 00- 

 shaped black markings, and a series of smaller markings on each 

 side ; lower parts yellow, posteriorly with squarish black blotches. 



Total length 1500 millim. ; tail 230. 



Mexico and Guatemala. 



a. cS (V. 244; C. G9). Dueuas, Guatemala. 0. Salvin, E.^q. [C.]. 



41. Coluber scalaris. 



Coluber scalaris, Schinz, Cuv. Thierr. ii. p. 123 (1822) ; Boie, Isis, 



1827, p. 536. 

 hermanni, Desmai-est, Faune Franq., Rejjt, pi. xix. (1826) ; 



Lesson, Act. Soc. Linn. Bord. xii. 1841, p. 58. 

 rihinechis agassizii, Michahelles, in Wagl. Icon. Amjjh. pi. xxv. 



(1833). 

 Coluber agassizii, Dugh,Ann. Sc. Nat. (2)iii. 1835, p. 139. 

 Xenodon michahelles, Schleg. Phys. Serp. ii. p. 92 (1837). 

 Khinechis scalaris, Bonap. Icon. Faun. Ital. (1838) ; Dum. Sr Bihr. 



vii. p. 227 (1854) ; Gihith. Cat. p. 85 (1858) ; Jan, Icon. Gen. 20, 



pi. i. (18(i7) ; De Betta, Faim. Ital, Rett. Anf. p. 39 (1874) 



Hchreib. Serp. Eur. p. 290 (1875) ; Bedriaya, Amph. f^~ Rept. 



Portuy. p. 73 (1889). 



Snout strongly projecting ; rostral deeper than broad, forming an 

 acute angle posteriorly, wedged in between the internasals, the 

 portion visible from above nearl)' as long as its distance from the 

 frontal ; internasals shorter than the proefrontals ; frontal about 

 once and one third as long as broad, as long as or shorter than its 

 distance from the end of the snout, nearly as long as the parietals ; 

 loreal longer than deep ; one praa- and two or three postoculars ; 

 temporals 2 + 3 or 2-|-4; seven or eight upper labials, fourth or 

 fourth and fifth entering the eye : four or five lower labials in 

 contact with the anterior chin-shields, which may be either longer 

 or shorter than the posterior. Scales smooth, in 27 (rarely 25 or 29) 

 rows. Veutrals 201-220 ; anal divided (rarely entire) ; subcaudals 

 48-68. Young yellowish or pale brown above, with a series of 

 regular H -shaped black or blackish-brown markings along the 

 back, and small black spots on the sides ; a V-shaped black marking 

 on the sriout, a black streak from the eye to the angle of the mouth, 

 and a black spot below the eye ; belly yellow, spotted or checkered 

 with black, or nearly entirely black. These dorsal markings dis- 

 appearing in the adult, and replaced by a pair of brown stripes 

 running along the back ; the belly uniform yellow. 



Total length 925 millim. ; tail IGO. 



South of Franco, Pyrenean Peninsula. 



a. S (Sc. 27 ; V. 207 ; C. Near Nice. Dr. F. Werner [E.l 



02). 

 h. Yg. (Sc. 27; V. 210; Montpellier. 



C. 58). 

 c. $ (Sc. 27 ; V. 213 ; Spahi. Lord Lilford [P.]. 



C.?). 



VOL. II. F 



