Figure 21. Chalceus guaporensis and C in Taxonomic revision of the South American fish genus Chalceus Cuvier (Teleostei: Ostariophysi: Characiformes) with the description of three new species

Figure 21. Chalceus guaporensis and C. epakros spp. nov. Tukey box plots of the number of lateral line scales. Visual comparison shows that these scale counts are obviously different in the two species. Although overlapping, the counts are significantly different when subject to Mann–Whitney rank-sum tests (t = 13158.5, P <0.001; median: C. guaporensis = 36, C. epakros = 34).