60. COLUBER. 31 



f. $ (V. 168; C.?). Yuriroaguas, Hual- Dr. Hahnel [0.]. 



laga River, N.E. 

 Peru. 



g. Yg. (V. 170 ; C. 101). Moyobamba, N.E. Hr. A. II. Roff [C.]. 



Peru. 



h. Yg. (V. 176; C. 97). Sarayacu, N.E. Peru. Mr. W. Davis [C,]; 



Messrs. Veitch [P.]. 



2. Coluber corals. 



? Coluber reticularis, Daud. Kept. vi. p. 281 (1803). 

 Coluber corals, JBoie, Ins, 1827, p. 537 ; Schleg. Phys. Serp. ii. p. 139, 

 1. v. figs. 9 & 10 (1837), and Abbild. p. 102, pi. xxviii. tigs. 9-11 



obsoletus (now Say), Holbr. N. Am. Herp. iii. p. 01, pi. xii. 

 (1842). 



couperi, Holbr. 1. c. p. 75, pi. xvi. 



Georgia couperi, Baird 8f Gir. Cat. N. Am. Kept. p. 92 (1853). 

 obsoleta, Baird fy Gir. I. c. p. 158, and U.S. Mex. Bound. Surv. 



ii., Kept. pi. xv. (1859). 

 Spilotes corals, Dum. $ Bibr. vii. p. 223 (1853) ; Giinth. Cat. p. 98 



(1858); Wucherer, Proc. Zool. Soc. 1861, p. 324; Giinth. Zool. 



Rec. 1867, p. 140 ; Jan, Icon. Gen. 48, pi. iv. fig. 6 (1876) ; Gartn. 



N. Am. Rept. p. 48 (1883) ; Cope, Proc. US. Nat. Mus. xiv. 1892, 



p. 636; Giinth. Biol. C.-Am., Rept. p. 116 (1894). 

 melanurus, Dum. Sf Bibr. t. c. p. 224 ; Cope, Proc. Ac. Philad. 



1860, p. 564; Jan, 1. c. pi. v. fig. 2. 



erebennus, Cope, I. c. pp. 342 & 364, and Proc. Ac. Philad. 1864, 

 p. 167; Sumichrast, Arch. Sc. Phys. Nat. (2) xlvi. 1873, p. 2-7.1. 



couperi, Cope, Proc. Ac. Philad. 1860, pp. 342 & 364; Garm. 



I. c. p. 48. 

 Geoptyas collaris, Steindachn. Sitzb. Ak. Wien, Iv. 1867, p. 271, pi. iii. 



figs. 4-7. 



flaviventris, Steindachn. I. c. p. 269, pi. iv. figs. 4-7. 



Spilotes corais, var. melanurus, Cope, Journ. Ac. Philad. (2) viii. 

 1876, p. 135; Bocourt, Miss. Sc. Mex., Rept. p. 687, pi. xliv. fig. 1 

 (1888). 



, var. erebennus, Cope, I. c. 



Coryphodon constrictor, Jan, 1. c. pi. vi. fig. 1. 

 Spifotes obsoletus, Garm. I. c. p. 48. 



corais, var. obsoletus, Bouourt, I. c. p. 689. 

 xanthurus, A. E. Brown, Proc. Ac. Philad. 1893, p. 433. 



Rostral broader than deep, visible from above; intern asals as 

 long as broad or a little broader, shorter than the pnefrontals ; 

 frontal as long as broad or a little longer, as long as its distance 

 from the rostral or the end of the snout, much shorter than the 

 j writ-tula ; loreal nearly as long as deep ; one pro- or two post- 

 oculars ; rarely a small subocular below the praeocular ; temporals 

 I' + 2 ; eight (rarely seven) upper labials, fourth and fifth (or third 

 and fourth) entering the eye ; four lower labials in contact with the 

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

 posterior. Scales in 17 rows (19 or 21 on the neck), smooth, or 

 with a short and feeble keel, disposed somewhat obliquely in the 



