174 COLUBRID. ~ 
17. Rhadinza lachrymans. 
Lygophis lachrymans, Cope, Proc. Amer. Philos. Soc. xi. 1869, 
p- 164. 
Rhadinza lachrymans, Cope, Journ. Ac. Philad. viii. 1876, p. 140, 
Dromicus lachrymans, Giinth. Biol. C-Am., Rept. p. 114 (1894). 
Snoutshort; rostral broader than deep ; internasals broader than 
long ; frontal broad, shorter than the parietals ; loreal longer than 
deep; one pre- and two postoculars ; temporals 1+2; eight upper 
labials, fourth and fifth entering the eye ; anterior chin-shields shorter 
than the posterior. Scales in 17 rows. Ventrals 173; anal divided ; 
subcaudals 78. Chestnut-brown above ; end of ventrals and first three 
and a half rows of scales blackish, yellowish-margined above from 
side of neck to end of tail; on the anterior half the body is divided 
by a yellowish band on the first and second rows of scales; head 
above brown ; a deep brown band from eye across sixth labial, 
another across seventh, and a black spot on each side of neck; below 
and labials bright yellow, the anterior upper Jabials brown margined. 
Habitat unknown. 
18. Rhadinza undulata. 
Coluber undulatus, Wied, Beitr. Nat. Bras. i. p. 829, and Abbild. 
(1825). 
Enicognathus melanocephalus, part., Dum. § Bibr. vii. p. 330 (1854) ; 
Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 269, and Icon. Gén. 16, 
pl. i. fig. 4 (1866). 
_ Coronella decorata (non Giinth. 1858), Giinth. Proc. Zool. Soe. 1859, 
p. 412. 
Dromicus brevirostris, Peters, Mon. Berl, Ac. 1863, p.280, and 1871, 
p- 400. 
undulatus, Peters, 1. ec. 1863, p. 281. 
Enicognathus teniolatus, Jan, 7. ce. p. 272, 16, pl. ii. f. 4. 
Dromicus boursieri, Jan, Icon. Gén. 25, pl. il. fig. 2 (1867). 
viperinus, Giinth. Ann. § Mag. N. H. (4) 1. 1868, p. 418. 
—Lygophis nicagus, Cope, Proc. Ac. Philad. 1868, p. 132. 
Rhadinza tzeniolata, Cope, Proc. Am. Philos. Soc. xi. 1869, p. 154. 
Coronella whymperi, Bouleng. Ann. § Mag. N. H. (5) ix. 1882, 
p. 460, fig. 
? Enicognathus joberti, Sauvage, Bull. Soc. Philom. (7) viii. 1884, 
p- 146. 
Rhadinza nicaga, Cope, Proc. Am. Philos. Soc. xxiii. 1886, p. 102. 
Coronella teniolata, Loetty. Ber. Senck. Ges. 1888, p. 195. 
Snout very short; rostral broader than deep, scarcely visible from 
above ; internasals as long as broad, or a little broader, shorter than 
the preefrontals ; frontal once and a half to once and two thirds as 
long as broad, longer than its distance from the end of the snout, 
shorter than the parietals; loreal as long as deep or deeper than 
long; one pree- and two postoculars; temporals 1+2 (rarely 242); 
eight upper labials, third, fourth, and fifth entering the eye ; four 
lower labials in contact with the anterior chin-shields, which are 
shorter than the posterior. Scales in17 rows. Ventrals 149-167; 
