112. ATEACTTJS. 311 



Snout obtuse. Rostral small, as deep as broad, just visible from 

 above ; inteniasals small ; praefroutals as long as broad ; frontal as 

 long as broad, as long as its distance from the end of the snout, 

 shorter than the parietals ; loreal nearly three times as long as 

 deep ; two postoculars, lower very small and not in contact with 

 the temporal; temporals 1 + 2; eight upper labials, fourth and 

 fifth entering the eye ; four lower labials in contact with the single 

 pair of chin-shields, which are rather elongate, moderately broad, 

 and separated from the symphysial. Scales in 15 rows. Ventrals 

 150; anal entire; subcaudals 22. Black above and beneath; 

 parietal shields, temporal and gular regions white. 



Total length 205 millim. ; tail 24. 



AVestern Andes of Ecuador. 



1 8. Atractus reticulatus. (Plate XV. fig. 3.) 



Geophis reticulatus, Bouleng. Ann. ^- Mag. N. II. (5) xvi. 188o, 

 p. 87. 



Snout rounded. Itostral a little broader than deep, just visible 

 from above : internasals very small ; praefroutals as long as broad ; 

 frontal a little broader than long, as long as its distance from 

 the end of the snout, shorter than the parietals ; loreal twice as 

 long as deep; two postoculars; temporals 1+2; seven upper 

 labials, third and fourth entering the eye ; four lower labials in 

 contact with the single pair of chin-shields, which are moderately 

 large and separated from the symphysial. Scales in 15 rows. 

 Ventrals 150 ; anal entire ; subcaudals 26. Pale brownish above, 

 each scale edged with dark brown ; an ill-detined dark brown 

 collar ; lower parts uniform whitish. 



Total length 315 millim. ; tail 40. 



Southern Brazil. 



a. $ (V. 156, C. 26). S. Lorenzo, Rio Grande Dr. II. von Ihering [C.]. 

 do Hul. (Type.) 



19. Atractus emmeli. 



Geophis emmeli, Boetfg. Ber. Senckenb. Ges. 1888, p. 192, hg. 



Snout rounded. liostral somewhat broader than deep, just 

 visible from above ; internasals very small ; prtefrontals as long as 

 broad ; frontal nearly once and a half as broad as long, a little 

 shorter than the praefroutals, much shorter than the parietals ; 

 loreal more than twice as long as deep ; two postoculars ; temporals 

 1 -|- 2 ; seven upper labials, third and fourth entering the eye ; four 

 lower labials in contact with the single pair of chin-shields, which 

 are rather elongate, moderately broad, and separated from the 

 symphysial. Scales in 15 rows. Ventrals 167-170; anal entire; 

 subcaudals 28-30. Dark brown or olive-grey above, somewhat 

 paler across the back of the head ; yellowish, greenish, or greyish 



