182 



sent to the National Museum, by Robert Kennicott, from Southern Illi- 

 nois, and Mr. Garmau, as cited above, gives its range as "Ohio to 

 Florida." It i?, therefore, not unreasonable to expect to find it yet in 

 Indiana. 



The scales of N. cyclopion are disposed in from 27 to 33 rows. All the 

 scales are distinctly keeled, except those of the outer row, which are 

 only faintly keeled. The ventrals are from 138 to 150 ; the subcaudals, 

 60 to 75 pairs. There is one anteorbital, two postorbitals and two sub- 

 orbitals. The species may usually be readily recognized by the upper 

 labials being cut off from contact with the eye by these suborbitals. 

 However, this test occasionally fails. The general color is aii olive brown 

 or a lead color. Along the sides are faint vertical bands two scales long, 

 and separated by narrow spaces. These may meet on the back, or they 

 may alternate. This species appears to be closely related both to N. tax- 

 ispilota and rhmnhifera. 



Ophibolus ealligaster, (Harl.), 



Coluber ealligaster, Harlan, 1835, 39, 122; Ophibolus evansii, Kennicott, 

 1859, 1, 99 ; Ophibolus ealligaster, Cope, 1875, 12, 37 ; Ophibolus triangu- 

 lus, var. ealligaster, Garman, 1883, 13, 66. 



Resembles 0. doliatus triangulus, but has the ground-color lighter. The 

 scales are in 25 or occasionally 27 rows. Light olive-brown or gray, with 

 a dorsal series of about 60 subquadrangular, emarginate, dark chestnut- 

 brown blotches, and on each side two series of smaller lateral spots. 

 Belly reddish yellow. Central Illinois to Indian Territory. Dr. Yarrow 

 (10, 94) reports this snake in the National Museum from Mt. Carmel, 111. 

 There is. therefore, no reason why it should not occur in Indiana. It has 

 been stated to occur at Brookville, but since there is doubt about the cor- 

 rectness of the identification, I do not include it among the known snakes 

 of the State. 



Genus PITUOPHIS, Holbrook. 



Pitwyphis, Holbrook, 1842, 54, iv, 7 ; Pityophis, Hallowell, 1852, i, 

 181 ; Baird and Girard, 1853, 6, 64; Garman, 1883, 13, 51. 



Large and rather stout snakes, with distinct heads and short tails. 

 Head rather long and pointed. Crown shields 9 or 11 ; the postfrontals 

 being usually divided into a transverse row of fmr. Rostral high and 

 narrow. Loral present, small. Anteorbitals 2, rarely 1. Postorbitals 3 

 or 4. Nasals 2, with the nostril between. Scales keeled ; in 29 to 35 

 rows. Anal plate entire. 



