Morphological Variation in a Population of the Snake, Tantilla gracilis Baird and Girard

by Laurence M. Hardy; Charles J. Cole

Preoculars

Of the 245 specimens examined, 242 (98.8%) have one preocular on each side. Both preoculars are absent from two specimens, and one specimen has 1-0. In each case when a preocular is lacking, the "preocular" and prefrontal are fused. One specimen having 1-1 preoculars has both of them reduced to small vertical slivers.