Figure 3. Neuromasts more densely populate cavefish SO3 bones.

Delaunay triangulation and Voronoi decomposition were used to analyze a metric for the distance between SO3 neuromasts on the SO3 bony landscape (A). Neuromast density (calculated by neuromast number divided by area) was analyzed across each population for superficial neuromasts (B) on the SO3 (white outline) and for the crescent area (defined by the boundary of neuromast canals; red outline). Pairwise t-tests were performed and populations were grouped by statistical significance (a-d, a’-d’). White scale bar set to 3mm.