158 COLUBRID. 
1. Aporophis lineatus. 
Coluber lineatus, Linn. Mus. Ad. Frid. p. 30, pls. xii. fig. 1, and xx. 
fig. 1 (1754), and S. N. i. p. 382 (1766); Daud. Rept. vii. p. 25 
(1803). 
Herpetodryas lineatus, Schleg. Phys. Serp. ii. p. 191 (1837). 
Dromicus lineatus, part., Dum. § Bibr. vil. p. 655 (1854); Giinth. 
Cat. p. 154 (1858). 
lineatus, Jan, Icon. Gén. 24, pl. vi. fig. 4 (1867) ; Fischer, Arch. 
f. Nat. 1882, p. 285. 
Lygophis lineatus, Cope, Proc. Ac. Philad. 1862, p. 76. 
dilepis, Cope, l. ¢. p. 81. 
Aporophis lineatus, Cope, Proc. Am. Philos. Soc. xxii. 1885, p. 191. 
dilepis, Cope, l. 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 
prefrontals ; 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 pre-and two postoculars ; temporals 1+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 eye; lower parts 
yellowish white. 
Total length 650 millim.; tail 190. 
Guianas, Brazil, Paraguay. 
a-h. 3 (V. 165; C. 93), Demerara. 
(V. 167, 169, 164, 
166, 178;.C. 90, 90, 
82, 88, 90), & her. (V. 
170, 168; C. 87, 87). 
Fence. (Wig Wo Sra Oakes) Berbice. 
k. 2 (V. 170; C. 79). Para. R. Graham, Esq. [P.]. 
Lm. 2 (V. 178, 173; Asuncion, Paraguay. Dr. J. Bohls roy, 
’. 79, 81). 
2. Aporophis flavifrenatus. 
Lygophis flavifrenatus, Cope, Proc. Ac. Philad. 1862, p. 80. 
Dromicus amabilis, Jan, leon. Gén. 24, pl. v. fig. 2 (1867). 
Aporophis flavifrenatus, Cope, Proc. Am. Fhilus, Soc. xxii. 1885, 
p- 191. } 
Dromicus flavifrenatus, Bouleng. Ann. § Mag. N. H. (5) xviii. 1886, 
p- 453. 
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 
