174 



17. Rhadinaea lachrymans. 



Lypophis lachrymans, Cope, Proc. Amer. Philos. Soc. xi. 1809, 



p. liU. 



Rhadinaea lachrymans, Cope, Journ. Ac. Philad. viii. 1876, p. 140. 

 Dromicus lachryraaus, Giinth. Biol. C.-Am. t Rept. p. 114 (1894). 



Snout short; rostral broader than deep ; internasals broader than 

 long ; frontal broad, shorter than the parietals ; loreal longer than 

 deep ; one pne- 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 labials brown margined. 



Habitat unknown. 



18. Rhadinaea imdulata. 



Coluber undulatus, Wied, Beitr. Nat. Bras. i. p. 329, and Abbild. 



(1825). 

 Enicognathus melanocephalus, part., Dum. fy Bibr. vii. p. 330 ( 1854) ; 



Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 269, and Icon. Gin. 16, 



pi. i. fig. 4 (1866). 

 Coronella decorata (non Giinth. 1858), Giinth. Proc. Zool. Soc. 1859, 



p. 412. 

 Dromicus brevirostris, Peters, Man. Berl. Ac. 1863, p. 280, and 1871, 



p. 400. 



- undulatus, Peters, 1. c. 1863, p. 281. 

 Enicognathus taeniolatus, Jan, II. cc. p. 272, 16, pi. ii. f. 4. 

 Dromicus boursieri, Jan, Icon. G6n. 25, pi. ii. fig. 2 (1867). 



- viperinus, Giinth. Ann. Sf May. N. H. (4) i. 1868, p. 418. 

 Lygophis nicagus, Cope, Proc. Ac. Philad. 1868, p. 132. 

 Rhadinaea taeniolata, Cope, Proc. Am. Philos. Soc. xi. 1869, p. 154. 

 Coronella whymperi, Boukng. Ann. Sf Mag. N. II. (5) ix. 1882, 



p. 460, fig. 

 ? Lnicognathus joberti, Sauvage, Bull. Soc. Philom. (7) viii. 1884, 



p. 146. 



Rhadinaea nicaga, Cope, Proc. Am. Philos. Soc. xxiii. 1886, p. 102. 

 Coronella taeniolata, Boettg. Ber. Senck. Ges. 1888, p. 195. 



Snout ve.ry short ; rostral broader than deep, scarcely visible from, 

 above ; internasals as long as broad, or a little broader, shorter than 

 the praefrontals ; 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 prae- and two postoculars; temporals 1 + 2 (rarely 2-M); 

 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 in 17 rows. Ventrals 149-107 ; 



