FIGURE 1 in Phylogenetic structure of Holbrookia lacerata (Cope 1880) (Squamata: Phrynosomatidae): one species or two?

FIGURE 1. The shaded portion of the map depicts the historical distribution of Holbrookia lacerata (IUCN). The green and red triangles are localities for the historically divided northern (H. l. lacerata) and southern (H. l. subcaudalis) subspecies, respectively. The samples collected for this study are depicted as red or green circles. The orange line represents the Balcones Escarpment. The photograph outlined in red is a male Holbrookia subcaudalis from Jim Wells County, Texas and the photograph outlined in green is a male H. lacerata from Schleicher County, Texas. Photographs by Toby J. Hibbitts.