240 



COLTJBEIB^. 



internasals shorter than the prBefrontals ; frontal once and one 

 ' third to once and a half as long as broad, as long as its distance 

 from the end of the snout, shorter than the parietals, which are not 

 twice as long as broad ; one prse- and two postoeulars ; 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 

 long as or a little shorter than the posterior. Scales in 15 rows, 

 Ventrals 169-188 ; anal divided ; suboaudals 24-43. Pale yellowish 

 brown above, with five dark brown or black longitudinal streaks ; 

 head much spotted with dark brown or black ; a yellowish-white 

 occipital collar, which may be interrupted in the middle or confined 

 to the sides; a large yellowish-white blotch on the upper lip, 

 occupying the third, fourth, and fifth labials ; lower parts white, 

 with or without a blackish dot on the outer end of each ventral. 



Total length 760 millim. ; tail 65. 



Guianas, Brazil. 



a. Tg. (V. 169 ; C. 42). Cayenne. 



b. Yg. (V. 185 ; C. 30). Tijuca E. R. Bennett, Esq. [P.l. 



c. $ (V. 178; C. 24). Porto Real, Prov. M. Hardy duDr6neuf[C.]. 



Rio Janeiro. 



d. Yg. (V. 184 ; 0. 28). Tlieresop61is. " Dr. E. A. Goldi [P.l. 

 e,f. Yg. (V. 170, 184; Rio Janeiro. G. Busk, Esq. [P.]." 



0. 31, 32). 

 ff. 2 (V. 179 ; 0. 27). S. America. Zoological Society. 



(Type of Elapocephalus ttsniatus.) 



2. Elapomorphns wuchereri. 



Elapomorphus wuchereri, part., Gunih. Ann. Sr Mag. N. S. (3) vii. 



1861, p. 415, fig., and Proc. Zool. Soc. 1861, p. 16, fig. ; iStrauch, 



Bull. Ac. St. Pitersh. xxix. 1884, p. 565. 

 accedens, Jan, Arch. Zool. Anat. Phys. ii. 1862, p. 46 ; Strauch, 



I. c. p. 660. 



Eostral broader than deep, just visible from above ; internasals 

 shorter than the praefrontals ; frontal once and a half to once and 

 two thirds as long as broad, as long as or a little longer than its 

 distance from the end of the snout, much shorter than the parietals, 

 which are at least twice as long as broad; one prse- and two 

 (exceptionally one) postoeulars ; temporals 1 + 1 ; sis; upper labials, 

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

 with the anterior chin-shielde, which are as long as or a little 

 shorter than the anterior. Scales in 15 rows. Ventrals 176-184 ; 

 anal divided ; subcaudals 27-45. Pale yellowish brown above ; 

 young with three dark brown longitudinal lines, which disappear 

 in the adult ; sides of head dark brown or blackish, with a large 

 yellow blotch on the upper lip on the third to sixth labials ; rostral 

 and anterior labials each with a blackish spot ; lower parts white. 



Total length 1180 millim. ; tail 120. 



Brazil. 



