FIGURE 1. A in Additional notes on Orthalicidae from the Chimantá massif, Venezuelan Guayana, with descriptions of new species of Plekocheilus Guilding, 1828 (Mollusca: Gastropoda)

FIGURE 1. A. Map of northern South America, showing Venezuelan Guayana (white rectangle) and Chimantá massif (white dot). B. Map of Chimantá massif, showing location of tepuis (modified after Huber 1995a). C. Churí-tepui. The three locations studied are indicated by arrows.