112. AXRACTtTS. 303 



from the end of the snout, shorter than the parietals ; loreal short, 

 not or but slightly longer than deep ; one postocular ; temporals 

 1 + 2; six upper labials, third and fourth entering the eye; three 

 or four lower labials in contact with the single pair of moderately 

 large chin-shields, which are separated from the symphysial. Scales 

 in 15 rows. Ventrals 144-167 ; anal entire ; subcaudals 23-37. 

 Black above, with light annuli which widen towards the belly ; or 

 reddish with black annuli disposed in paii's ; belly barred black and 

 yellow. 



Total length GIO millim. ; tail 60. 



Ecuador and Brazil. 



a. d (V. 144; C. 29). W.Ecuador. Mr. Eraser [C.]. 



(Type.) 

 h. $ (V. 167 ; C. 26). Canelos, Ecuador. Mr. Buckley [C.J. 



c. d (V. 163 ; C. 37). Pebas. Mr. Hauxwell [0.1 



d. $ (V. 155 ; C. 28). Upper Amazon. Mr. E. Bartlett [C.]. 



2. Atr actus latifrons. 



Geophis latifrons, Giinth. Ann. ^- Mag. N. H. (4) i. 1868, p. 415, 

 pi. xix. lig, B, and ix. 1872, p. 15. 



Snout rounded. Rostral rather large, a little broader than deep, 

 the portion visible from above at least half as long as its distance 

 from the frontal ; internasals once and a half to twice as broad as 

 long; frontal as long as broad or a little broader than long, as long 

 as its distance from the end of the snout, shorter than the parietals ; 

 loreal short, not or but slightly longer than deep ; one postocular ; 

 temporals 1 + 2; six upper labials, third and fourth entering the 

 eye ; three or four lower labials in contact with the single pair 

 of moderately large chin-shields, which are separated from the 

 symphysial. Scales in 17 rows. Ventrals 142-150 ; anal entire ; 

 subcaudals 35-40. Body with black and yellow or red rings, which 

 may be broken up and irregular on the belly, the scales on the red 

 rings black-edged ; head black above, with a yellow vertical bar 

 in front of the eye, and a triangular yellow blotch on the temple, 

 extending or not across the occiput. 



Total length 410 millim. ; tail 70. 



Upper Amazon. 



A. Black rings disposed in 12 to 17 pairs, each enclosing a narrow 



yellow interspace and separated by broad red rings ; a yellow 

 bar across the occiput. 



a. Hgr. (V. 160; C. 36). Pebas. Mr. Hauxwell [C.]. 



(Type.) 



b. Hgr. (V. 142; 0. 35). Moyobamba. Mr. A. H. Roff [CI. 



c. cJ (V. 143; C. ?). Upper Amazon. Mr. E. Bartlett [C.]. 



B. Black rings 65, separated by narrow yellow rings ; no yellow 



across the occiput. 



d. 6 (V. 146 ; C. 40). Upper Amazon. H. W. Bates, Esq. [C.]. 



