63. HERPETODKYAS. 73 



A. Uuiform pale brown above. 



a-c, d-f. S (V. 143, 143, Porto Real, Prov. Rio M. F. Hardy dii 



142; C. 118, 122,12.5), Jaueiro. DreneuffC.l 



hgr. (V. 145, 145 ; C. 



113, ?), & yg. (V. 144, 



C. 120). 



g. d (V. 145; C. 128). S. Jos^ dos Campos, Prov. Mr. A. Thomson 



S. Paulo. [P.]. 



;i-2". c? (V. 146; C. ?) & Asuncion, Paraguay. Dr. J. Bolils 



2 (V. 150; C. 119). [C.]. 



B. Olive above, tail with two black stripes. 



k-l. S (V. 155 ; C. 116) Venezuela. Mr. Dyson [C.]. 



& 2 {V.151; C. 119). 



2. Herpetodryas carinatus. 



Coluber carinatus, Linii. Mus. Ad. Frid. p. 31 (1754), and S. N. i. 

 p. 384 (1766) ; Daml. liept. vii. p. 115 (1803). 



bicariiiatus, Wied, lieis. Bras. i. p. 181 (1820), a7id Beitr. i. 



p. 284 (1825), and Abhild. (1831). 



Natrix bicaviuata, Wayl. in Spiz; Serp. Bras. p. 23, pi. vii. (1824). 

 Coluber pyrrhopogon, JFicd, Beitr. i. p. 291, and Abbild. 



Itevicollis, Wied, Beitr. i. p. 206. 



Chironius carinatus, Fitz. N. Class. Sept. p. 60 (1826). 



Erpetodryas carinatus, Boie, Isis, 1827, p. 548. 



Herpetodryas carinatus, part., Schleg. Fhi/s. Serp. ii. p. 175, pi. vii. 



figs. 3 & 4 (1837) ; Bum. Sf Bihr. vii. p' 207 (1854) ; Giodh. Cut. 



p. 115 (1858) ; Copte, Froc. Ac. Fhikid. 1860, p. 562 ; Jan, Icon. 



Gen. 31, pi. ii. figs. 2-4 (18(;9) ; Garm. Froc. Am. Fhihs. Soc. 



xxiv. 1887, p. 284 ; Giinth. Biol. C.-A>n., Bept. p. 128 (1894). 



fuscus, part., Bum. ^- Bihr. t. c. p. 209 ; Giinth. I. c. p. 114. 



carinatus, Wucherer, Froc. Zool. Soc. 1861, p. 324. 



carinatus, vars. fiavolineata and macrophthalma, Jan, Eloico, 



p. 80 (1863). 

 Dendrophis, sp., F. Miiller, Verh. nat. Ges. Basel, vi. 1878, p. 678. 

 Herpetodryas flavolineatus, Boettg. Zeitschr. f. ges. Nuturw. Iviii. 



1885, p.'234. 



carinatus, var. vincenti, Bouleng. Froc. Zool. Soc. 1891, 



p. 355. 



Eye very large. Rostral broader than deep, visible from above ; 

 internasuls as long as or slightly shorter than the proefrontals ; 

 frontal once and one fonrth to once and two thirds as long as broad, 

 as long as or a little shorter than its distance from the end of the 

 snout or the parietals ; loreal longer than deep ; one praj- and two 

 (rarely three) postoculars ; temporals 1+1 or 1+2; eight or nine 

 upper labials, fourth and fifth, fifth and sixth, or fourth, fifth, and 

 sixth, entering the eye : five or six lower labials in contact with 

 the anterior chin-shields, which are as long as or shorter than the 

 posterior. Scales in 12 rows, all smooth, or the two middle rows 

 faintly keeled (females), or the two middle rows more or less strongly 

 keeled (males). Ventrals feebly angulate laterally, 145-173; 

 anal divided (very rarely entire); subcaudals 110-171. 



