278 COLUBRID. 
a. 9 (V.125; C.43), —? Leyden Mus. ( ) 
6. 2 (V. 128; C. 51). Lagoa Santa. Prof. Reinhardt | P.). 
(One of the types of H. assimilis.) 
c,d. 9 (V. 122; C.55) Porto Real, Prov. Rio M. Hardy du Dréneuf 
” & yg. (V.119; 0} 64). Janeiro. [C.}. 
8. Helicops leopardinus. 
Homalopsis leopardina, Schleg. Phys. Serp. ii. Pee: re (1837). 
Dimades leopardina, Gray, Zool. Misc. p. 65 (184 
Tachynectes leopardina, Gray, Cat. Sn. p. 69 (849), 
Helicops leprieurii, Dum. § Bibr. vii. p. 750, pl evil [Uranops: 
Sévére } (i854) ; Giinth, Ann. § Mag. N. H. (3) vii. 1861, p. 
Jan, Arch, Zool. Anat. Phys. iii, 1865, p, 253, and Icon. Gén, p. 28, 
pl. iv. figs. 2 & 3 (1868). 
— leopardinus, Jan, ll. ce. p. 251, pl. iii. fig. 2. 
Eye small; rostral visible from above, forming a narrow suture 
with the internasal ; frontal nearly twice as long as broad, widening 
behind, longer than its distance from the end of the snout, shorter 
than the parietals ; loreal deeper than long (rarely absent); one 
pre- and two postoculars; temporals 1 or 2+2 or 3; eight or nine 
upper labials, fourth or fourth and fifth entering the eye; four or 
five lower labials in contact with the anterior chin-shields, which. 
are as long as the posterior. Scales in 19 rows (sometimes 21 on 
the nape), more or less strongly keeled, outer rows usually smooth 
or feebly keeled. Ventrals 118-131; anal divided; subcaudals. 
53-83. Dark olive or brown above, with four or five alternating 
series of black spots; a light streak from below the eye to the angle 
of the mouth, sometimes connected with its fellow by a light cross. 
bar on the nape; lower parts checkered or cross-barred, black and. 
ellow. 
Total length 630 millim. ; tail 160. 
Guianas, Brazil. 
a. (V. 121; C. 66). Surinam. Lidth de Jeude Coll. 
b. 2 (V. 118; C. 69). Cayenne. 
e; V. 124; C. 70) Bahia. Dr. O. Wucherer [C.}.. 
d. 3 ( 
& 2 (V. 127; ©. 58). 
fs: (V. 125,181,128; Bahia. 
C, ? ? . 
9. Helicops angulatus. 
Coluber angulatus, Zinn. Mus. Ad. Frid. p. 23, pl. xv. fig. 1 (1754), 
and S N.i, p. 377 (1766); Daud. Rept. vii. p. 209 (1803). 
—— surinamensis, Shaw, Zool, iii, p. 460 (1802). 
Natrix aspera, Wagl. in Spix, Serp. Bras. p- 37, pl. xiii. (1824). 
Homalopsis angulata, Schleg. Phys. Serp. ii. p. "$51, pl. xiii. figs. 24 
& 25 (1837). 
Uranops angulatus, Gray, Cat. p. 68 (1849). 
Helicops angulatus, Dum. § Bibr. vii. p. 746 (1854) ; Giinth. Ann. 
& Mag’ N. H, (3) vii. 1861, p. 428; Jan, Arch. Zool. Anat. Phys. 
fi, 1865, p. 251, and Icon, Gén. 28, ‘pl. iv, fig. 1 (1868), 
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