Black Kingsnake

diagnosis

Diagnosis: The Black Kingsnake (L. nigra) is a large- to medium-bodied constrictor with an average adult size of 90 – 122 cm, with larger individuals attaining maximum lengths of 147 – 183 cm (Conant & Collins 1998). Scales are smooth, anal plate single, and individuals typically exhibit 19 – 25 scale rows at midbody. Ventral scale counts range from 197 – 222 in both sexes (fewer in the north), while subcaudals range from 45 – 59 in males and 37 – 51 in females (Blaney 1977). The Black Kingsnake can be distinguished from other species in the genus based on a combination of geography and color pattern. The Black Kingsnake ranges from southern Illinois to the Gulf coast along the Mississippi River, and east to the Appalachian mountain and the Alabama River drainage in south Alabama (Fig. 2). Black Kingsnakes all exhibit a black ground color, typically with a black-and-white checkered venter, and rarely faint traces of dorsal crossbands (Blanchard 1921; Blaney 1977; Conant & Collins 1998). Each dorsal scale is punctuated by a yellow or white speckle near the center of the scale; this is strongest in the southern portion of their range and fades considerably in the north, where many ad

Systematics of the Common Kingsnake (Lampropeltis getula; Serpentes: Colubridae) and the burden of heritage in taxonomy

etymology

Etymology: Specific epithet refers to the predominantly black dorsal coloration of many specimens. Synonymy: This species comprises the previously recognized subspecies L. g. nigra and L. g. holbrooki (part).

Systematics of the Common Kingsnake (Lampropeltis getula; Serpentes: Colubridae) and the burden of heritage in taxonomy

materials_examined

Holotype: USNM 12149, collected by Robert Ridgway. Type Locality: Wheatland, Knox Co. Indiana.

Systematics of the Common Kingsnake (Lampropeltis getula; Serpentes: Colubridae) and the burden of heritage in taxonomy