120 . COLUBRID. 
Opheomorphus chamissonis, Cope, Proc. U.S. Nat. Mus, xii. 1889, 
p- 144. 
Orophis biserialis, Garman, Bull. Essea Inst. xxiv. 1892, p. 85. 
Eye moderate, superciliary border projecting ; snout moderately 
elongate, obtuse. Rostral broader than deep, just visible from 
above; internasals as long as broad, shorter than the prefrontals ; 
frontal twice as long as broad, longer than its distance from the end 
of the snout, as long as the parietals; loreal as long as deep or 
ee one Deer and two (rarely three) postoculars; temporals 
142 or 242; eight upper labials, fourth and fifth entering the 
eye; four or five ‘lower labials in contact with the anterior ‘chin- 
shields, which are as long as or a little shorter than the posterior. 
Seales in 19 rows, Ventrals 179-225; anal divided ; subcaudals 
100-122. Length of tail 33 to 4 times in the total length. Brown 
or olive above, with or without black spots ; a dark vertebral stripe, 
four or five scales wide, bordered on each side by a more or less 
distinct yellowish streak which begins on the canthus rostralis ; 
this dorsal stripe may be broken up into two series of spots; labials 
~ yellowish, usually with dark borders; belly yollowish or pale 
olive, dark-dotted or with a light dark-edged longitudinal streak on 
each side; chin and throat, in the young, brown, variegated with 
yellow. 
Total length 1160 millim. ; tail 310. 
Chili, Peru, Galapagos Islands. 
a. 2 (V.193; 0.103). Chili. 
b. d (V. 188; C. 108). Chili. Mr. Bridge [C.]. 
cad.  D2(V, '200, 197; Colchagua, 
C. 104, 100). 
é. ae (V. 182; C.118). . Luco Bay. Dr. Cunningham [P.], 
Ff. Yg. (V. 209; C.110). Charles Id., Gala- OC. Darwin ([P.]. 
pagos. (Type of A. biserialis.) 
me (e170 5.C, 110), p 
h. Skull. Chili. 
2. Dromicus angulifer. 
Dromicus angulifer, Bibr. in R. de la Sagra, Hist. Cuba, Rept. p. 222, 
pl. xxvii. [Coluber cantherigerus] (1843); Dum. § Bibr. vii. p. 670 
(1854) ; Ginth. rim 129 (1858), 3; Jan, Icon. Gén. 28, pl. vi. 
(1867) ; Peters, Mon. Berl. a 1869, p. 440. 
unicolor, Dum. & Bibr.p. 658; Jan, a cit. a pl. vi. fig. 2. 
Alsophis vudii, Cope, Proc. Ac. Philad, 1862 , Bare 
oO anculifer, Cope, l. c. p. 76; Garm. Proc, Am. ‘Philos. Soc. xxiv. 
1887, p. 282. 
Dromicus (Alsophis) angulifer, var. adspersus, Gundl. § Peters, Mon. 
Berl. Ac. 1864, p. 388. 
adspersus, Gundl. Repert. fis. Cuba, ii. 1868, p- 116, and Erp. 
Cubana, p. 78 (1880). 
Diadophis rubescens, Cope, Proc. Am. Philos, Soc. xxii. 1885, p. 403. 
Alsophis caymanus, Garm. l. c. p. 276. 
angulifer cay manus, A, LE. Brown, Proc. Ac. Philad. 1893, p. 433. 
Eye rather large, superciliary border projecting; snout rather 
