112. arractus. 307 
Snout rounded. Rostral small, once and a half as broad as deep, 
just visible from above; internasals very small, a little broader 
than long; prefrontals as long as broad; frontal slightly broader 
than long, as long as its distance from the end of the snout, much 
shorter than the parietals; loreal nearly thrice as long as deep; 
two postoculars; temporals 1+2; seven upper labials, third and 
fourth entering the eye; four lower labials in contact with the 
single pair of chin-shields, which are moderately large and separated 
from the symphysial. Scales in 17 rows. Ventrals 148-159; 
anal entire ; subcaudals 21-26. Pale yellowish or reddish brown 
above, some of the scales edged with black, with numerous regular 
black transverse spots or bars; upper lip and lower parts uniform 
whitish. 
Total length 335 millim.; tail 40. 
Brazil. 
Ge Ove 148" ©226): Brazil ? (Type.) 
b OU (Vot5os Ce 20): Pernambuco. W. ie Forbes, Esq. { P. |. 
11. Atractus major. 
Rhabdosoma maculatum (non Giinth., 1858), Giinth. Proc. Zool. 
Soc. 1859, p. 411. 
Rabdosoma badium, part., Jan, Arch. Zool. Anat. Phys. i. 1862, 
p. 13, and Icon. Gén. 11, pl. i. fig. 1 (1865). 
Snout obtuse. Rostral small, nearly as deep as broad, just 
visible from above; internasals very small; prefrontals longer 
than broad ; frontal as long as broad, or slightly longer than broad, 
as long as its distance from the internasals or from the rostral, 
much shorter than the parietals ; loreal twice and a half to thrice 
and a half as long as deep; two postoculars; temporals 1+ 2; 
seven upper labials, third and fourth entering the eye; three lower 
labials in contact with the single pair of chin-shields, which are 
moderately large, and separated from the symphysial. Scales in 17 
rows. Ventrals 163-182; analentire ; subcaudals 30-45. Brown 
above, with darker spots, which may be large and light-edged, 
forming a handsome pattern ; labials yellowish, with brown sutures ; 
yellowish beneath, dotted or spotted with brown or black. 
Total length 700 millim. ; tail 80. 
Ecuador, Brazil. 
a-b, c. 9 (V.174,168; C. W. Ecuador. Mr. Fraser [C. }. 
43,30) & yg. (V. 163; 
C. 43). 
d.-2 (V. 1703 Cat); Intac, Ecuador. Mr. Buckley [C. ]. 
e. Yo. (V. 182; C. 36). Pallatanga, Ecuador. Mr. Buckley [C.]. 
f. Yg. (V. 169; C. 45).  Canelos, “Ecuador. | Mr. Buckley [C.]. 
12. Atractus isthmicus. 
Feaadoeema zebrinum (non Jan), Bocourt, Miss. Sc. Mex., Rept. 
p. 539, pl. xxxiv. fig. 1 (1883). 
- ©) 
