.3. AMPnisJBJiXA. 439 



labials, second largest, first and second forming a suture with the 

 median chin-shield ; a large chin-shield on each side behind the 

 second labial. Two hundred and nineteen to two hundred and 

 thirty-three annuli on the body (205 to 242, Strauch) and seven- 

 teen to twentj'-one on the tail ; the segments of the annuli all much 

 longer than broad, and scared}' broader on the belly than on the 

 back ; on the middle of the body each annulus contains sixty to 

 eighty segments, twenty-eight to thirty-eight on the dorsal and 

 thirty-two to forty-two on the ventral side. Lateral line distinct. 

 Eight or ten anal segments. Praeanal pores six to ten. Brownish 

 above, whitish beneath, uniform. 



millim. 



Length to vent 520 



Tail 50 



Diameter of body 23 



Tropical South America ; West Indies. 



a. Ad. (A. 230-f-19 ; p. 9). Brazil. 



b. Ad. (A. 226-fl8; p. 7). Brazil. 



c-d. Ad. (A. 232-1-18, 233-^-18 ; Pernambuco. W. A. Forbes, Esq. [P.]. 



p. 8). 



e-cj. Ad. (A. 219-f 19, 220-1-21, Movobamba. Mr. A. H. Roff [C.]. 



222-1-19 ; p. 8). 



h-i. Ad. (A. 232-1-17, 225-1-17 ; S. America. 



p. 7, 6). 



k. Ad. (A. 225-f-20; p. 10). S. America. 



/. Ad. (A. 231+19; p. 8). S. A.merica. 



m. Ad. (A. 222-1-20; p. 9). S. America. 



n. Ad., stuffed. S. America. 



0,2^. Ad., skeletons. S. America. 



3. Amphisbaena beniensis. 



Amphisbaena beniensis, Cope, Proc. Am. Phil. Sac. xxii. 1885, 

 pp. 184, 188, pi. — . fig. 2. 



Snout moderately elongate, obtuse ; rostral plate a little visible 

 from above ; nasals forming a suture, which is shorter than that 

 between the proefrontals or the frontals ; a pair of prajf rentals and 

 a pair of smaller frontals ; occipitals small ; eye visible through the 

 ocular ; a postocular and an intraocular ; no pra^ocular ; four upper 

 labials, third and fourth small, second in contact with the ocular; 

 mental 8ub(iuadrate, followed by a seven-sided chin-shield ; three 

 lower labials. Tail with sixteen annuli. Eight or ten anal seg- 

 ments. Six praeanal pores. Colour above light reddish brown ; 

 below yellow. 



Length to vent 310 millim. ; tail 35. 



Upper Beni Kiver, Bolivia. 



