300 Illinois State Laboratory of Natural Historif. 



occupied by a downward extension of the prefrontals. One 

 auteorbital. Two postorbitals. Supralabials seven, sixth 

 largest, eye above the third and fourth. Infralabials seven, 

 fifth largest. Dorsal scales in ninetrnn rows, the outer scales 

 of each side a tritle the largest. Ventrals 175-180. Subcau- 

 dals 44-54. 



Bright red above, with eighteen to twenty-five pairs of 

 transverse black bands, each pair enclosing a white band. 

 Head red in front, marked with black posteriorly, and with a 

 yellow band bounded by black bars on the occipital region. 

 The black bands may be continuous around the body, or be 

 interrupted on the ventral surface. 



Anna; not uncommon (C. W. Butler). 



DiADOPHIS, Bl). AND GrIR. 



Bd. and Gil., Cat. N. A. Kept., Ft. I., 1853, p. 112. 



Dorsal scales smooth, in fifteen to seventeen rows. Anal 

 plate divided. Rostral normal. Two internasals. Two pre- 

 frontals. Two nasals. Loreal present. Two anteorbitals. Two 

 postorbitals. Moderately slender. Head distinct from the body. 

 Small species. 



Diadophis punctatus, Linn. Ring Snake. 

 Var. punctatus. 



Coluber paitctatas, Linn., Syst. Nat., ed. 12, 1766, I., p. 376.— 



Holbr., N. A. Herp., 1842, III., p. 81, pi. 18.— De Kay, Nat. 



Hist. N. Y., I., Zool. III., Kept, and Amph., 1842, p. 39, pi. 



14, fig. 29. 

 I)i</dophispnnctatas. Bd. and Gir., Cat. N. A. Kept., Ft. I., 1853. 



p. 112. 

 Ablabes punctatas, Dum. etBibr., Erp. Gen., VII., 1854, p. 310. 

 THadopMs piinetatvs. subsp. punctatios, Davis and Rice, Bull. 



111. State Lab Nat. Hist., I., No. 5, 1883, p. 35; Bull. Chicago 



Acad. Sci., 1883. 

 Diadophis punctatus, S. Garman, Mera. Mus. Comp, Zool., 1883, 



pp. 72, 138, pi. 2, fig. 2. 



Var. amabilis. 



Diodopliis amabilis. Bd. and Gir., Cat. N. A. Kept, Ft. I., 1853, 

 p. 113. 



