81. RHADIN®A. 173 
a. Hgr.9 (V.170; C. 64). Rio Janeiro. AY ry, Haq. (Pa) | 
b. Her. ¢(V. 147; C. 71). Rio Janeiro. G. Busk, Esq. [P. ]. { 
(Lypes.) 
c-e. 6 (V. 178; C.?) & Rio Grande do Sul. Dr. H. v. Ihering 
you: (V. 172, 176, C:; (C.]. (Types of 
58, ?). C. theringit.) 
F. 9 (CVi185; Cl 6p). Theresopolis. Fischer Collection. 
16. Rhadinea pecilopogon. 
Dromicus affinis, part., Giinth. Cat. p. 128 (1858). 
Rhadinwa pecilopogon, Cope, Proc. Ac. > Philad. 1863, p. 100; 
Giinth. Zool. Rec, 1866, p. 125. 
Enicognathus elegans, Jan, Arch. Zool. Anat. Phys. \i. 1863, p. 268, 
and Icon. Gén. 16, pl. 1. fig. 5 (1866). 
Dromicus melanocephalus, Peters, Mon. Berl. Ac. 1863, p. 277. 
? Liophis persimilis, Cope, Proc. Ac. Philad. 1868, p. 308. 
Coronella peecilopogon, Bouleng. Ann. § Mag. N. H, (5) xv. 1885, 
p- 194, and xvii. 1886, p. 431. 
FEnicognathus bilineatus, Fischer, Jahrb. Hamb. Wiss. Anst. ii. 1885, 
p- 98, pl. iil. fig. 5. 
Eye rather small. Rostral broader than deep, scarcely visible 
from above ; internasals broader than long, shorter than the prie- 
frontals ; frontal once and two thirds as long as broad, much longer 
than its distance from the end of the snout, and a little shorter than 
the parietals ; loreal as long as deep or deeper than long ; one pra- 
and two postoculars ; temporals 142; seven upper labials, third 
and fourth entering the eye; four lower labials in contact with the 
anterior chin-shields, which are shorter than the posterior. Scales 
in 17 rows. Ventrals 141-164; anal divided; subcaudals 66-75. 
Length of tail 33 to 4 times in the total length. Back brown, with 
three black longitudinal lines or series of dots; sides usually dark 
grey, which colour extends upon the sides of the ventrals; head 
dark brown or blackish, with a white line round the snout, along 
the canthus rostralis, and from the eye to the second upper tem- 
poral; upper lip white, brown-dotted ; ventral region yellowish in 
the middle, with a lateral series of small black spots or short lines, 
which may be confluent into a streak on the hinder half of the 
body. 
Total length 440 millim.; tail 120. 
Southern Brazil, Paraguay, and Uruguay. 
a-b. §(V. 151; C.75) & Rio Grande do Sul. Dr. H. v. Ihering [C.]. 
2 (V. 160; C. 69). 
c. 2 (V. 168; C. 70). Sta. Catharina. Dr. H. vy. Ihering [C.]. 
d. 3 (V.141; C. 72). Santos. Dr. J. G. Fischer's 
Collection. (Type 
of LZ. bilineatus.) 
e. ¢ (V. 155; C. 66). Brazil. Haslar Collection. 
(One of the types of D. affinis.) 
Ff, g (V. 154; C, 72). Paraguay. Prof. Grant [P. ]. 
