. 
: 
d 
. 
21. sTREPTOPHORUs. 293 
2. Streptophorus labiosus. 
Streptophorus labiosus, Bocourt, Miss. Sc. Mewx., Rept. p. 550, 
xxxii. fig. 6 (1883). 
Ninia labiosa, Cope, Bull. U.S. Nat, Mus. no, 32, 1887, p. 75. 
Rostral about once and a half as broad as deep, visible from 
above ; frontal as broad as long, as long as its distance from the 
end of the snout, shorter than the parietals ; loreal but little longer 
than deep; two ‘postoculars, the upper fused with the su 
temporals 1+2, keeled; seven upper labials, third and fourth 
entering the eye, fifth, sixth, and seventh keeled ; four lower labials 
in contact with the anterior chin-shields ; posterior chin-shields 
short. Scales in 19 rows, all strongly keeled. Ventrals 145; anal 
entire; subcaudals 100. Dark brown above, with an orange collar; 
upper lip and lower parts yellow; a brown dot in the middle of 
each ventral. 
Total length 313 millim.; tail 102. 
Guatemala. 7 
3. Streptophorus atratus. 
Coluber atratus, Hallow. Proc. Ac. Philad. 1845, Ps i 
Streptophorus sebae, Dum. § Bibr. vii. p. 515 (1854) ; Giinth. Cat. 
. 16 (1858); Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 27, and 
con, Gén. 1, pl. iii. figs. 4-6, & 13, pl. i. fig. 1 (1865) ; Bocourt. 
ee » Rept. p. 546, pls. xxxii. fig. 7, & xxxiii. fig. 1 
1 
Bail Daim. § Bibr. t. ce. p. 518; Giinth. le. 
— lanshergi, Dum. § Bibr. lL.c. ; Jan, ll. cc. p. 26, 1. 13, pl. i, 
fig. 2; Bocourt, 1. c. p. 551, pl. xxxii. fig. 9. 
Ela dis fasciatus, Hallow. Journ. Ac. Philad. (2) iii. 1855, p. 35, 
Bccuchers atratus, Cope, Proc. Ac. Philad. 1860, p. 76. 
Ninia atrata, Cope, t.c. p. 340, and Bull. U.S. Nat. Mus, no. 32, 
1886, p. 74 
— lnsherg, Cone, Pre Ac. Philad. 1860, p. 340. 
—— seb 
Streptophorus maculatus, Peters, Mon. Berl. Ac. 1861, p. 924; 
Bocourt, l. c. p. 548, pl. xxxiii. fig. 3. 
—— seb, vars. maculatus, collaris, schmidti, drozii, Jan, W. ce. 
Ninia sebw, subsp. tessellatus, Cope, Jowrn, Ac. Philad, (2) viii. 
1876, p. 145. 
—— spi ogaster, Peters, Sitzb. Ges. naturf. Fr, 1881, Doe 
Streptophorus maculatus, var. pavyimentatus et tesse tus, Bocourt, 
lc. pp. 549, 550, pls. xxxii. fig. 8, & xxxiii. figs. 2 & 4. 
Rostral once and a half to twice as broad as deep, more or less 
visible from above; internasals and supraoculars small; frontal 
about as broad as long, as long as its distance from the end of the 
snout, shorter than the parietals ; loreal once and a half to twice as 
long as deep ; two postoculars (rarely one); temporals 142; seven 
or eight upper labials ; four or five lower labials in contact with 
the anterior chin-thields; ; posterior chin-shields small. Scales in 
