416 COLUBRID. 
5. Elaps langsdorffii. 
Elaps langsdorffii, Wagl. in Spiv, Serp. Bras. p. 10, pl. ii. fig, J 
(1824); Jan, Arch, fr Nat. 1859, p. 273. walle 
a on Giinth. Ann. §& Mag. N. H. (4) i. 1868, p. 428, pl. xvii.. 
mee imperator, Cope, Proc. Ac. Philad. 1868, p. 110, and Proc. 
Amer. Philos. Soc. Xi, 1869, p. 156. 
Eye as long as or a little longer than its distance from the mouth. 
Rostral broader than deep; frontal broader than the supraocular, 
once and two thirds as long as broad, longer than its distance from the 
end of the snout, as long as or slightly shorter than the parietals ; 
latter as long as their distance from the internasals ; one pre- and 
two postoculars; temporals 1+ 1; seven upper labials, third little 
larger than fourth, third-and fourth 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. Scalesin 15 rows. Ventrals 
204-225 ; anal divided; subcaudals 387-54. Dark brown above, the 
scales lighter at the base, with 63 transverse series of small cream- 
coloured spots, each occupying one scale; yellowish beneath, with 
red cross-bands ; a yellow dot on each supraocular shield. 
Total length 300 millim. 
Upper Amazon. 
a, Hgr. ¢ (V. 204; C. 54), Pebas, N.E. Peru. Mr. Hauxwell [C.]. 
(Type of £. batesit.) 
Thanks to the kindness of Prof. Hertwig, I have been able to 
examine the type specimen (¢ ), from the R. Japura, preserved in 
the Museum of Munich. 
E. imperator, which is identified with EZ. batesii by Cope, forms a 
colour-variety distinguished by the spaces between the transverse 
series of yellow spots, on the back, being alternately black and red, 
the red ventral cross-bars extending to the upper surface. 
6. Elaps buckleyi. (Prare‘XXII. fig. 1.) 
6a corallinus, part., Giinth. Cat. p. 233 (1858), and Ann. §& Mag. 
. H. (8) iv. 1859, p. 171. 
Eye nearly as long as or a little longer than its distance from the 
mouth. Rostral broader than deep; frontal broader than the supra- 
ocular, once and one third to once and a half as long as broad, longer 
than its distance from the end of the snout, as long as or slightly 
shorter than the parictals ; latter as long as their distance from the 
internasals ; one pre- and two postoculars ; temporals 1+ 2; seven 
upper labials, third not larger than the fourth, third and fourth 
entering the eye; four lower labials in contact with the anterior 
chin-shields, which are shorter than the posterior. Scales in 15 
rows. Ventrals 202-211 ; anal divided ; subcaudals 39-43, 
Orange (red ?), with 48-60 black annuli on the body; on the back 
the annuli edged with small yellow spots, each occupying one scale ; 
the annuli close together on the tail; head black above, as far as 
