71. LEPTOPHIS. 113 



pr.vfrontal in ronhut with labials; one pracocular, in contact with 

 r narrowly separated from the frontal; temporals 1+^; eight or 

 nine upper labials, fourtli and tilth or fifth and sixth entering the, 

 tive or six lower labials in contact with the anterior chin- 

 siiields, which are shorter than the posterior. Scales in 15 rows, 

 all except the outer row more or less distinctly keeled ; the keel 

 on the middle vertebral series more feeble, or obsolete ; scales on 

 neek and tail smooth. Ventrals distinctly angulate laterally, 14 ( .l- 

 J'Jl ; anal divided; subcaudals 106-103. Green above, head-shields 

 and scales broadly edged with black ; keels black ; ventrals and 

 subcaudals yellowish or pale green, uniform or edged with dark 

 green. 



Total length 1010 millim. ; tail 390. 



Upper Amazons. 



a. ? (V. 168 ; C. 115). Upper Amazons. Mr. E. Bartlett [C.]. 



(Type.) 

 b-c. rf (V. 155 ; C. 142) & Pebas. 



$ (V. 11 ; C. 163). 

 d-e. $ (V. 158, 149; C. Peruvian Amazons. 



153, 150). 

 f-9> rf (V. 155; C. 117) Moyobamba, N.E. Mr. A. H. Roff [C.]. 



& $ (V. 153:C. 144). iWu. 



h. $ (V. 151 ; C. 10o). Sarayacu, N.E. Peru. Mr. W. Davis [C.I; 



Messrs. Veitch [P.J. 



11. Leptophis liocercns. 



Coluber abtetulla, part., Gmel. S. N. i. p. 1116 (1783) ; Bonnat. 



Encyd. Meth., Ophiol. p. 28 (1789) ; Lacep. Serp. p. 223, pi. xi. 



fig. 1 (1789). 

 - boiga, part., Baud. Kept. vii. p. 63, pi. Ixxxiv. (1803). 



liocercufl, Wied, Abbild. (1824), atid Beitr. Nat. Bras. i. p. 2G5 



- richardii, Bory de St. Vine. Ann. Sc. Nat. i. 1824, p. 408, 

 pi. xxiv. 



Ahtetula liocercus, Gray, Griff. A. K. ix. Syn. p. 93 (1831). 



- richardi, Gray, I. c. 



Leptophis ahaetulla, part., Bell, Zool. Journ. ii. 1825, p. 328. 

 Dendrophis h'ocercus, part., Schkg. Phys. Serp. ii. p. 224, pi. ix. 



fi^s. 1 & 2 (1837). 



Leptophis liocercus, part., Dum. < Jlif>r. vii. p. 533 (1845). 

 Ahaetulla liocercus, part., Gunth. Cat. p. 153 (1858). 



liocercus, Gunth. Proc. Zool. Soc. 1H59, p. 413. 

 Thrasops ahactulla, Cope, Proc. Ac. Philad. 1800, p. 



- marginatus, Cojte, Proc. Ac. Philad. 18(52, p. 349. 

 Ahaetulla ahaetulla, Peters, Mon. Berl. Ac. 1878, p. 607. 

 Leptophis liocercus, Jan, Icon. Gen. 49, pi. vi. tig. 1 (1879). 



Rostral broader than deep, just visible from above ; internasals as 

 long as or shorter than the pnefrontals ; frontal once and a half to 

 t wire as long as broad, as long as its distance from the rostral or 

 the end of the snout, as long as or a little shorter than the parietals ; 

 nasal elongate, entire or divided ; no loreal ; pncfrontal in contact 



VOL. II. I 



