. Bulletin. Natural history; Natural history. November, 1961 Smith: Amphibians and Reptiles of Illinois 217 Illinois range of holbrooki is more extensive than that of the closely related tiigei', hol- brooki is apparently much less common. Most of the Illinois specimens have been taken in the Lower Mississippi Border di- vision. Intergradation of holbrooki and niger is exhibited by specimens from extreme south- vi^estern Illinois, and intergrades probably occur in most of the Southern Division. Single juveniles cannot be referred with cer- tainty to either race, since the subspecific differenc
. Bulletin. Natural history; Natural history. November, 1961 Smith: Amphibians and Reptiles of Illinois 217 Illinois range of holbrooki is more extensive than that of the closely related tiigei', hol- brooki is apparently much less common. Most of the Illinois specimens have been taken in the Lower Mississippi Border di- vision. Intergradation of holbrooki and niger is exhibited by specimens from extreme south- vi^estern Illinois, and intergrades probably occur in most of the Southern Division. Single juveniles cannot be referred with cer- tainty to either race, since the subspecific difference is one of pattern only. In a series from southern Union County, the niger in- fluence predominates. In material from Jack- son and northern Union counties, the two pattern types are about equally distributed. In eastern Illinois, no intergrades have been taken. Specimens from Effingham County are typical liolhrooki; those from adjacent Cum- berland and Jasper counties are typical niger. Although undocumented by specimens, published records for the following localities are believed valid and are indicated on the distribution map by hollow symbols: Jack- son County: Elkville, Makanda (Cagle 1942a); Murphysboro (Ditmars 1945); Peoria County: Peoria (H. Garman 1892); St. Clair County: (Hurter 1911). Lampropeltis getulus niger (Yarrow) Black Kingsnake Ophibolus getulus niger Yarrow 1882/':438 (type locality: Wheatland, Indiana) ; Yar- row 1882^:93. Lampropeltis getulus niger, Blanchard 1921: 18, 43-8. Lampropeltis getulus nigra, Pratt 1923:221. Ophibolus getulus sayi nee Holbrook, Yarrow 1882a:93 (part). Lampropeltis getulus holbrooki nee Stejneger, Myers 1926:291. Diagnosis.—A subspecies of Lampropeltis getulus (largest Illinois specimen 1,369 mm. in total length), fig. 205, differing from L. g. holbrooki only in detail of dorsal pattern: speckling reduced to 40 to 56 narrow cross- bands, each of which forks on the side; some of lateral scales with light centers, others black.
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