190. ELAPOMOEPHUS. 243 



p. $ (V. 212 ; C. 24). High Pampas of E. W. White, Esq. 



San Luis, Men- [0.]. 



doza. 

 q. Skeleton. Rio Grande do Sul. 



6. Elapomorplms trilineatus. (Plate X. fig. 3.) 



Elapomorphus trilineatus, Bouleng. Ann. ^ Mag. N. S. (6) iv. 1889, 

 p. 266. 



Rostral as deep as broad, the portion visible from above 

 measuring two thirds its distance from the frontal, in contact with 

 the anterior angle of the single praefrontal; internasals meeting 

 with their inner angles ; frontal once and a half as long as broad, 

 not quite so long as its distance from the end of the snout, much 

 shorter than the parietals, which are twice as long as broad ; one 

 prse- and two postoculars ; temporals 1+1; six upper labials, 

 second and third entering the eye, fifth largest ; four lower labials 

 in contact with the anterior chin-shields, which equal the posterior 

 in size. Scales in 15 rows. Ventrals 203; anal divided; sub- 

 oaudals 26. Cream-colour ; above with three black streaks inter- 

 rupted by the pale borders of the scales, the middle one on the 

 vertebral row of scales, the lateral between the fourth and fifth 

 rows ; a blackish transverse band on the base of the tail ; ventrals 

 and subcaudals black antero-mesially. 



Total length 530 millim. ; tail 45. 



Southern Brazil. 



a. 5 (V. 203 ; 0. 26). Camaquam River, Rio Dr. H. v. Ihering [0.]. 

 Grande do Sul. (Type.) 



7. Elapomorplms Mlineatus. 



Elapomorphus biUneatus, Bum. 8f Bibr. vii. p. 839 (1854) ; Jan, 

 Arch. Zool. Anat. Phys. ii. 1862, p. 44, and Icon. G6n. 14, pi. ii. 

 fig. 1 (1865) ; Strauch, Bull. Ac. St. Petersb. xxix. 1884, p. 563 ; 

 Boeourt, Miss. Sc. Mex., Rept. pi. xxxvi. fig. 3 (1886). 



Phalotris bilineatus. Cope, Proc. Ac. Philad. 1861, p. 524. 



Eostral as deep as broad, the portion visible from above a little 

 shorter than its distance from the frontal and entirely separating 

 the internasals ; prsBfrontal single ; frontal a little longer than 

 broad, shorter than its distance from the end of the snout, much 

 shorter than the parietals, which are not twice as long as broad ; 

 one prK- and two postoculars ; temporals 1 + 1 ; six upper labials, 

 second and third entering the eye ; four lower labials in contact 

 with the anterior chin-shields, which are as large as the posterior. 

 Scales in 15 rows. Ventrals 218 ; anal divided; subcaudals 21. 

 Brownish yellow above, with a blackish line on each side of the 

 back, between the fourth and fifth rows of scales ; head blackish 

 above and beneath ; ventrals and subcaudals blackish, edged with 

 whitish. 



Total length 348 millim. ; tail 20. 



Corrientes, Argentina. 



E 2 



