86 PROCEEDINGS OF THE ACADEMY OF [JtlU. , 



(1); temporal.s 1 (2)-2; upper labials 6 or 7; scales in 1!) rows; 

 veutrals 156-188; subcaudals 35-45. Length 560 mm. (tail 80). 



Back scarlet, crossed by pairs of black bands, each pair enclos- 

 ing a whitish or yellow one about three scales wide; most scales in 

 the yellow band are dotted with black; belly yellowish, un- 

 marked; top of head red or yellow, with a black bar between the 

 orbits. 



Hab. — South Carolina :md Florida, west to the Mississippi. 



RHINOCHILUS B. and O. 



/. c, 120 ; Cope, l. c, 605, and Rep. Nat. Mas., 930 ; Boul., I. c, II, 

 212. 



Maxillary teeth smooth, increasing posteriorly, no interspace; 

 one loreal ; one or two preoculars; two interuasals; two nasals; 

 rostral somewhat projecting; scales smooth, with pits, in 17-23 

 rows; anal entire; subcaudals usually entire; size medium; head 

 slightly distinct. 



Hab. — -North and South America. 



Ehinochilus lecontii B. and G. 



I. c, 120 : Cope, I. c, 606, and Rep. Nat. Mas., 931 ; Boul., I. c, II, 

 212; Van Den., I. c, 174. 



Body moderately stout; head scales normal; one large pre- 

 ocular, occasionally with a small one below; two post-oculars; tem- 

 porals 2-3 (one in my collection has a small additional temporal 

 in the first row on one side); upper labials 8; scales in 23 rows; 

 ventrals 189-212; subcaudals 40-55, not divided. The largest I 

 have seen, measured 965 mm. (tail 135). 



There is a series of blotches on the back, alternating black and 

 red or orange : the red ones nearly quadrate, the black ones 

 transversely wider; on the sides, below the blotches, some scales 

 are marked with black or yellow; belly white or yellow, with 

 black blotches on the ends of some ventrals. A living specimen 

 from Pecos, Tex., has twenty-seven brilliant scarlet blotches on 

 the body and twelve on the tail; below the scarlet l)lotches each 

 scale is yellow with a black centre, while on the corresponding por- 

 tion of the black areas, which extend to the fourth row, each scale 

 has a yellow centre; many of the scales in the outer rows are 

 tinged with red. The snout in front of the frontal plate is red, 

 behind that black, each scale marked with yellow, Lai)ials 

 3'ellow, all the upper ones posterior to the third, heavily margined 



