3l< COLUHKIH.1.. 



1. Geophis poeppigii. 



liaMosoma piippi-ri, ,/<m, An-li. 7.<K,l. Aunt. J'hys. ii. 1862, p. 11, and 

 /rn. Gin. 10, pi. iii. tig. 4 (1805). 



Eyo very small, much shorter than its distance from the mouth. 

 Snout rounded, llostral 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 proefrontals much broader 

 than long ; frontal much broader than long, as long as its distance 

 from the rostral, much shorter than the pjirietals ; 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 symphysinl. 

 Scales smooth, in 15 rows. Ventrals 170; aual 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. Geopliis semidoliatus. 



Habdosoma semidoliatum, Dum. fy Bibr. vii. p. 93 (1854). 

 Khabdosonm semidoliatum, part., Giinth. Cat. p. 10 (1858). 

 Geophis semidoliatus, Peters, Man. Berl. Ac. 1859, p. 276; Bocourt, 



Miss. Sc. Mex., Rept. p. 534, pi. xxxi. tig. 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. Gen. 12, pi. ii. tig. 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. Eostral 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 praefrontals, 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 ; 

 supraocular small ; 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. 



