316 , COLUBRID. 
1. Geophis poeppigii. 
tabdosoma pippigi, Jan, Arch. Zool. Anat. Phys. ii. 1862, p: 11, and 
Icon. Gén. 10, pl. iii. fig. 4 (1865). : 
Eye very small, much shorter than its distance from the mouth. 
Snout rounded. LRostral rather large, once and a half as broad as 
deep, the portion visible from above about half as long as its 
distance from the frontal ; internasals and preefrontals much broader 
than long; frontal much broader than long, as long as its distance 
from the rostral, much shorter than the parietals ; supraocular 
small; loreal nearly twice as long as deep, shorter than the two 
nasals together; one postocular; six upper labials, third and fourth 
entering the eye, fifth largest; a single pair of chin-shields, in 
contact with four lower labials and separated from the symphysial. 
Seales smocth, in 15 rows. Ventrals 170; anal entire; subcaudals 
? Brown above; barred brown and white beneath; on the 
anterior part of the body the white bars of the ventral surface 
extend some way up the sides; upper lip and temporal region white. 
Total length 570 millim. 
Brazil. 
2. Geophis semidoliatus. 
Rabdosoma semidoliatum, Dum. § Bibr. vii. p. 93 (1854). 
Rhabdosoma semidoliatum, part., Giinth. Cat. p. 10 (1858). 
Geophis semidoliatus, Peters, Mon. Berl. Ac. 1859, p. 276; Bocourt, 
Miss. Se. Mex., Rept. p. 534, pl. xxxi. fig. 7 (1883); Giinth. Biol. 
C-Am., Rept. p. 90 (1893). 
Catostoma semidoliatum, Cope, Proc. Ac. Philad. 1860, p. 339. 
Elapoides semidoliatus, Jan, Arch. Zool. Anat. Phys. ii. 1862, p. 22, 
and Icon. Gén. 12, pl. ii. fig. 1 (1865): 
Maxillary extending considerably beyond the palatine in front, 
the first tooth below the nostril. Eye extremely small, its length 
hardly half its distance from the mouth. - Snout rounded, project- 
ing. ostral rather large, a little broader than deep, the portion 
visible from above measuring one third to two fifths its distance 
from the frontal ; internasals a little broader than long, about two 
fifths the length of the prefrontals, which are nearly as long as 
broad ; frontal as long as broad, or slightly broader than long; as 
long as its distance from the rostral, much shorter than the parietals ; 
supraocularssmall ; loreal once and two thirds to twice as long as 
broad; a minute postocular, sometimes fused with the supra- 
ocular ; five upper labials, third entering the eye ; four lower labials 
in contact with the anterior chin-shields, which are longer than the 
posterior and separated from the symphysial. Scales in 15 rows, 
everywhere perfectly smooth. Ventrals 147-174; anal entire; 
subcaudals 24-28. More or less regularly barred black and yellow 
or orange above, uniform yellowish beneath; head and nape black, 
with a yellowish bar across the temples and the parietal shields. 
Total length 330 millim.; tail 30. 
Mexico. 
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