176 COLUBRID. 
Rostral broader than deep, scarcely visible from above; inter- 
nasals broader than long, shorter than the prefrontals; frontal 
nearly twice as long as broad, much longer than its distance from 
the end of the snout, and slightly shorter than the parietals ; loreal 
as long as deep, or a little deeper than long; one pre- and two 
postoculars ; temporals 1+2 or 242; eight upper labials, third, 
fourth, and fifth entering the eye; four or five lower labials in 
contact with the anterior chin-shields, which are shorter than the 
posterior. Scales in 15 rows. Ventrals 152-183; anal divided ; 
subcaudals 64-86. Tail 33 to 43 times in the total length. Back 
olive-brown, with two alternating series of blackish, lght-edged 
spots, which are largest and sometimes confluent into cross bands 
on the anterior part of the body, and may be lost altogether poste- 
riorly ; sides usually darker, sometimes blackish grey ; head brown 
above, with a blackish lateral streak, passing through the eyes, and 
a white line round the snout, along the canthus rostralis and supra- 
ciliary edge; usually a pair of white dots close together on the 
parietals ; sometimes a pair of larger light spots on the occiput ; 
upper lip white; belly white, with a lateral series of black dots, 
- which may be confluent into a longitudinal line. 
Total length 475 millim. ; tail 105. 
Brazil, Paraguay, North Argentina, Bolivia, Eastern Peru. 
pay. 160; ‘0: 66). Bahia. Dr. O. Wucherer [P.]. 
(Type of D. wuchereri). 
b. 2 (V. 183; C. 64). Rio Grande do Sul. Dr. H. v. Thering | C.]. 
ce. Yg. (V.175; C. 68). Asuncion, Paraguay. Dr. J. Bohls (C.). 
Gig ¥-178; C.7). Candelaria, Argen- M. J. Bove [C.]; 
tina. Marquis G. Doria| P.]. 
eres ACV; Wi 2s). (73). Cashiboya, N.E. Mr. W. Davis C1; 
Peru. Messrs. Veitch | P. |. 
— 
7.6 (¥. 1655" C. 70). Peru ? 
21. Rhadinewa decorata. 
Coronella decorata, Giinth. Cat. p. 35 (1858) ; Zool. Ree. 1866, 
p. 125, and Biol. C.-Am., Rept. p. 111 (1893). 
Diadophis decoratus, Cope, Proc. Ac. Philad. 1860, p. 250; Bocourt, 
Miss. Sc. Mex., Rept. p. 624, pl. x1. fig. 3 (1886). 
Enicognathus vittatus, part., Jan, Arch. Zool. Anat. Phys. ii. 1863, 
p- 271, and Icon. Gén. 16, pl. ii. fig. 2 (1866). 
Rhadinzea decorata, Cope, Proc. Ac. Philad, 1863, p. 101, and Journ. 
Ac. Philad. viii. 1876, p. 188. 
Dromicus ignitus, Cope, Proc. Ac. Philad. 1871, p. 201. 
Rhadinea ignita, Cope, Jow'n. Ac. Philad. viii. 1876, p. 140, and 
Proc. Amer. Philos, Soc. xxxi. 1893, p. 344. 
Coronella ignita, Giinth. Biol. C.-Am., Rept. p. 111 (1893). 
Eye moderate. Rostral broader than deep, scarcely visible from 
above; internasals broader than long, shorter than the pre- 
frontals; frontal once and a half as long as broad, longer than 
its distance from the end of the snout, shorter than the parietals ; 
loreal square; one or two pre- and two postoculars; a small 
subocular may be present below fhe prxocular; temporals 142; 
eight upper labials, fourth and fifth entering the eye; four or five 
