158 COLUBRIDJE. 



1 . Aporophis lineatus. 



Coluber lineatus, Linn. Mm. Ad. Frid. p. 30, pis. xii. fig. 1, and xx. 



fig. 1 (1764), and S. X. i. p. 382 (1760); baud, licpt. vii. p. >! 



(1803). 



llfrpetodryas lineatus, Schlcy. Phys. Scrp. ii. p. 101 (1837). 

 Dromicus lineatus, part., Dum. fy Bibr. vii. p. 665 (1854) ; Gunth. 



Cat. p. 134 (1858). 



lineatus, Jan, Icon. Gen. 24, pi. vi. fig. 4 (1867) ; Fischer, Arch. 



f. Nat. 1882, p. 286. 

 Lygophis lineatus, Cope, Proc. Ac. Philad. 1862, p. 76. 



dilepis, Cope, 1. c. p. 81. 



Aporophis lineutus, Cope, Proc. Am. Philos. Soc. xxii. 1885, p. 191. 



dilt'pis, Cope, I. c. 



Rostral broader than deep, visible from above ; posterior border 

 of internasals more than twice as broad as the anterior; suture 

 between the internasals as long as or shorter than that between the 

 praefrontals ; frontal narrow, twice to twice and one third as long 

 as broad, longer than its distance from the end of the snout, as long 

 as the parietals ; loreal as long as deep or deeper than long ; one or 

 two prae- and two postoculars ; temporals 1-f 2 ; eight upper labials, 

 fourth and fifth entering the eye ; five or six lower labials in 

 contact with the anterior chin-shields, which are as long as or a 

 little longer than the posterior. Scales in 19 rows. Ventrals 165- 

 178 ; anal divided ; subcaudals 79-93. Yellowish or pale olive 

 above, with a brown black-and-yellow-edged vertebral band com- 

 mencing on the snout ; a black or brown lateral line, widening on 

 the side of the head and passing through the eje ; lower parts 

 yellowish white. 



Total length 650 millim. ; tail 190. 



Guianas, Brazil, Paraguay. 



a-h. <$ (V. 165 ; C. 93), Demerara. 



$ (V. 167, 169, 164, 



166, 173; C. 90, 90, 



82, 88, 90), & hgr. (V. 



170, 168 ; C. 87, 87). 

 . S (V. 175; C. ?). Berbice. 



k. $ (V. 170 ; C. 79). Para. R. Graham, Esq. [P.l 



l-m. $ (V. 178, 173 ; Asuncion, Paraguay. Dr. J. Bohl& [CJ. 



C. 79, 81). 



2. Aporophis flavifrenatus. 



Lygophis flavifrenatus, Cope, Proc. Ac. Philad. 1862, p. 80. 

 Dromicus amabilis, Jan, Icon. Gen. 24, pi. v. tig. 2 (1867). 

 Aporophis tiavifreuatus, Cope, Proc. Am. I-hilos. &oc. xxii. 1885 



p. 101. 

 Dromicus flavifrenatus, Bouleng. Ann. $ Mag. N. II. (5) xviii. 1886 



p. 433. 



Rostral a little broader than deep, just visible from above ; 

 posterior border of internasals more than twice as broad as the 

 anterior ; suture between the internasals as long as or shorter than 



