138 



COLUBEIDJE. 



Natrix semilineata, Wagl. in Spix, Serp. Brag. p. 33, pi. xi. fig. 2 



(1824). 

 Coronella reginse, part., Sohleg. Phys. Serp. ii. p. 61 (1837). 

 LiopMs reginK, part., Dum. Sf BAr. vii. p. 704 (1854) ; Jan, Arch. 



Zool. Anat. Phys. ii. 1863, p. 293, and Icon. 06n. 16, pi. vi. fig. 1 



(1866). 



reginse, Oilnth. Cat. p. 46 (1858). 



tseniurua (non Tsch.), Gunth. I. c. pp. 46, 246. 



merremii, part., Oiinth. I. c. p. 44. 



reginse, var. ornata, Jan, II. cc. 18, pi. ii. fig. 2. 



Ej'e rather large ; snout short. Eostral broader than deep, 

 visible from above ; internasals broader than long, shorter than the 

 praefrontals ; frontal once and two thirds to twice as long as broad, 

 much longer than its distance from the end of the snout, as long as 

 the parietals or slightly shorter ; loreal deeper than long ; one prse- 

 and two postoculars ; temporals 1 + 2 ; eight upper labials, fourth 

 and fifth entering the eye ; five lower labials in contact witb the 

 anterior chin-shields, which are as long as or a little longer than t h 

 posterior. Scales in 17 rows. Ventrals 136-150 ; anal divided ; 

 subcaudals 58-81. Length of tail 3 to 4 times in the total length. 

 Olive or greenish above, which colour extends to the ends of the 

 ventrals ; usually, each scale edged with black, forming a reticulate 

 pattern ; a more or less distinct black streak along each side of the 

 tail ; upper lip yellow ; young with a yellowish collar and an 

 oblique yellowish, black-edged band on each side of the head, from 

 the parietal shield to the last upper labial ; traces of these markings 

 are usually to be found in the adult ; belly yellowish, usually vsdth. 

 black spots. 



Total length 650 millim. ; tail 165. 



Tropical South America. 



a. S (V.139; 0.78). 



b, c-g, h, i. 3 (V. 139, 144, 

 141, 140; 0.72, 71, ?,P), 



5 (V. 144, 140, 139; 

 0. ?, 74,76), &yg.(V. 

 136 ; 0. 73). 



k--m, n. S (V. 143 ; 0. 77) 



6 S (V. 144, 146, 141 ; 

 0. 72, 68, P). 



0^. cJ (V. 148; 0.71)& 

 ? (V. 140 ; 0. 74). 



q. d (V. 145 ; 0. ?). 



r-s. d' (V. 149, 138; 0, 

 80, 62). 



t, u. $ (141, 141 ; 0. 70, 

 58). 



V. $ (V. 144; 0.72). 



w-x. 2 (V. 148 ; 0. ?) & 



yg. (V. 142 ; 0. 71). 

 y. S (V. 140 ; 0. 76). 

 z. 6 (V.139; 0.75). 



Trinidad. 

 Demerara. 



Berbice. 



J. H. Hart, Esq. [P.] 



Para. 



Para. 

 Bahia. 



Moyobamba, N.E. 



Peru. 

 Sarayacu, N.E. Peru. 



Guayaquil. 



S. America. 



R. Graham, Esq. [P.]. 

 Dr. O. Wucherer 



[0.]. 

 Mr. A. H. Kofi- [0.]. 



Mr. W. Davis [0.] ; 

 Messrs. Veitch [P.]. 

 Mr. Eraser [0.]. 



(Type of C. graphicus.) 



