396 KANSAS UNIVERSITY SCIENCE BULLETIN. 



seven, rarely eight, sixth largest ; third and fourth entering 

 orbit. Lower labials nine, occasionally ten, fifth largest; first 

 pair meeting at the median line. Pregenials larger than post- 

 genials. Gastrosteges 198-215. Urosteges 44-57, in two series. 

 Anal entire. Tail about one-seventh total length. 



Ground color above hair brown. A dorsal series of about 

 fifty-five subquadrate spots eleven scales wide by two and one- 

 half scales long. Alternating with the dorsal spots are lateral 

 spots four scales wide by one and one-half scales long. These 

 are on the second to seventh rows of scales. A series of smaller 

 spots, partly on the gastrosteges and partly on the first row of 

 scales, alternates with the lateral. The spots are seal brown 

 bordered with black. Belly pearly white maculated with a 

 double row of slate-gray spots. Each spot covers the ends of 

 two or three gastrosteges. Labials bordered with black. Two 

 parallel bars on the occipitals terminated by a brown spot on 

 the frontal. A brown band from the angle of the eye to the 

 angle of the mouth crosses the upper part of the last three 

 upper labials. In old specimens the head markings becom9 

 indistinct. 



Scutellation and dimensions of six specimens from Douglas 

 county : 



This species is quite numerous throughout the eastern part 

 of Kansas, and occurs in all parts of the state. In the collec- 

 tion of snakes at the Beloit high school there are eight speci- 

 mens of Ophibolus caUigaster and not more than seven of any 

 other species. This collection is representative of Mitchell 

 county, and indicates that 0. caUigaster is as numerous as any 

 other species found there. I have examined specimens from 

 Douglas, Mitchell, Jefferson, Lyon, Franklin, Republic, Shaw- 

 nee, Scott, Gove, Logan and Riley counties. It has been 

 reported from Geary, Sumner, Miami, Neosho, Pottawatomie 

 and Greenwood counties. 



0. caUigaster lives upon mice, frogs, small fish, etc. I kept 



