57. DRYMOBIUS. l^ 



b. HgT. (V. 160 ; C. 94). Colombia. 



c. $ (V. 163 ; C. ?). Esmeraldas, Ecuador. Mr. Eraser [C.]. 



^'1% % it^' S- f) *^°y°l^amba, Peru. Mr! A.^H. Eoff [CI. 



&¥(»'• loo ; C. 84). ■- -^ 



/. Yg. (V. 150 ; C. 96). P ^. Lidth_ de Jeude 



Collection. 

 5. Drymobius bivittatus. 

 Leptophis bivittatus, Bum. ^~ Bib,: vii. p. 540 (1854) 

 Tliamnosophis bivittatus, Jan, Elenco, p 82 (1863) 

 ^'"^Sz"''^"^ subradiatus^ /««, Arch. Zool. Anai Phys. iii. 1865, 



p. 227, and Icon. Gen. 27, pi. lii. figs. 1 & 2 (1868) 

 Herpetodryas tetrattenia, Gimth. Ann. ^ May. N. H. (4) ix. 1872, 



Maxillary teeth 32, posterior very feebly enlarged. Rostral 

 broader than deep, just visible from above ; internasals shorter than 

 the priBfrontals ; frontal once and a half as long as broad, a little 

 longer than its distance from the end of the snout, a little shorter 

 than the panetals ; loreal as long as deep; one prteocular, not 

 touching the frontal; two postoculars ; temporals 2 + 2- nine 

 upper labials, fourth, fifth, and sixth entering the eye ; five lower 

 labials in contact with the anterior chin-shields, which are much 

 shorter than the posterior. Scales strongly keeled, in 17 rows 

 Ventrals 14/ -152; anal divided; subcaudals 109-128 Olive- 

 grey above neck with black spots; body and tail with two broad 

 b ack 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 tront. 



Total length 730 millim. ; tail 290. 



Colombia. 



a. 6 (V. 151 ; C. 128). Bogota. (Type of H. tetratcenia). 



6. Drymobius dendrophis. 



Herpetodryas dendrophis, Schleg. Phys. Serp. ii. p. 196 (1837), and 

 AbbM p 132, p] xhv. figs 2.5-28 (1844); Giinth.Cat. i ns 

 (18o8), and Ann. f May. N.H. (3) xii. 1863, p. 358, pi. vi. L. B • 

 Jan, Icon. Gen. 31, pi. iii. fig. 2 (1869). ° ' 



sestivus, Berthold, Abh. Ges. Gotting. iii. 1847 p H 



poitei. Bum. 8f Bihr. vii. p. 208 (1854). ' 



— f.^™'^"^^^' G^i;>^th.Cat p. 116, and Ann. ^ Mag. N. H. IS) xii. 

 1863, p 358, pi. 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 ; Gimth. 



Biol. C.-Am., Pept. p. 127 (1894). 

 Herpetodryas nuchalis, Peters, Mon. Berl. Ac. 1863 p ^gs 

 Masticophis brunneus, Cope, Proc. Ac. Philad. 1868,' p lOo" 

 Dendrophidium dendrophis, Cope, Proc. Am. Pkilos. Soc. xxiii 1886 

 p. 2/8; Bocourt, Le ]\atur. 1889, p. 46, figs., and Miss. Sc. Mex.', 

 fsS; p^: ioo; p^l ' " ''°- ' ^''^^ ' ^"^''' ^^ muraleza, (i) u! 



