57. DRYMOBIUS. 15 
6. Her. (V. 160; C.94). Colombia. 
2o9 (V. 16d5@re): Esmeraldas, Ecuador. Mr. Fraser [C.]. 
(Type). 
d,e. 3 (V. 148; C.93) Moyobamba, Peru. Mr, A. H. Roff [C.]. 
& 2 (V.158; 0.84). 
Ff. ¥g. (V. 150; C. 96). ——P v. Lidth de Jeude 
Collection. 
5. Drymobius bivittatus. 
Leptophis bivittatus, Dum. § Bubr. vii. p. 540 (1854). 
Thamnosophis bivittatus, Jan, Elenco, p. 82 (1863). 
Tropidonotus subradiatus, Jan, Arch. Zool. Anat. Phys. iii. 1865, 
p- 227, and Icon. Gén. 27, pl. iii. figs. 1 & 2 (1868). 
Herpetodryas tetrateenia, Giinth. Ann. § Mag. N. H. (4) ix. 1872, 
p. 23. 
Maxillary teeth 32, posterior very feebly enlarged. Rostral 
broader than deep, just visible from above ; internasals shorter than 
the prefrontals ; frontal once and a half as long as broad, a little 
longer than its distance from the end of the snout, a little sho ter 
than the parietals; loreal as long as deep; one preocular, not 
touching the frontal; two postoculars; temporals 2+ 2; nine 
upper labials, fourth, fifth, and sixth entering the eye; five lov7er 
labials in contact with the anterior chin-shields, which are much 
shorter than the posterior. Scales strongly keeled, in 17 rows. 
Ventrals 147-152: anal divided; subcaudals 109-128.  Olive- 
grey above, neck with black spots; body and tail with two broad 
black dorsal stripes separated by the width of one scale, and with a 
black lateral line running along the second series of scales ; a black 
streak on each side of the head, above the lip, which is white ; 
lower parts white, the shields olive-grey at the outer ends and 
black-edged in front. 
Total length 730 millim. ; tail 290. 
Colombia. 
a. d (V. 151; CO. 128). Bogota. (Type of H. tetratenia). 
6. Drymobius dendrophis. 
Herpetodryas dendrophis, Schleg. Phys. Serp. ii. p. 196 (1837), and 
Abbild. p. 132, pl. xliv. figs. 256-28 (1844); Giinth. Cat. p. 118 
(1858), and Ann. § Mag. N. H. (8) xii. 1863, p. 358, pl. vi. fig. B; 
Jan, Icon. Gén. 31, pl. ii. fig. 2 (1869). 
wstivus, Berthold, Abh. Ges. Gotting. iii. 1847, p. 11. 
poitei, Dum. & Bibr. vi. p. 208 (1854). 
— brunneus, Giinth. Cat. p. 116, and Ann. § Mag. N. H. (8) xii. 
1863, p. 358, pl. vi. fig. A; Salvin, Proc. Zool. Soc. 1860, p. 456 ; 
Garm. Bull. Essex Inst. xxiv. 1892, p. 91. 
Drymobius dendrophis, Cope, Proc. Ac, Philad. 1860, p. 561; Giinth. 
iol. C-Am., Rept. p. 127 (1894). 
Herpetodryas nuchalis, Peters, Mon. Berl, Ac. 1863, p, 285. 
Masticophis brunneus, Cope, Proc. Ac. Philad. 1868, p. 105, 
Dendrophidium dendrophis, Cope, Proc. Am. Philos. Soc. xxiii. 1886, 
p- 278; Bocourt, Le Natur. 1889, p. 46, figs., and Miss. Sc. Mezx., 
Rept. p. 730, pl. xlix. fig. 4 (1890); Dugés, La Naturaleza, (2) ii. 
1892, p. 100, pl. v. 
