FIGURE 9 in A review of the Polystira clade—the Neotropic's largest marine gastropod radiation (Neogastropoda: Conoidea: Turridae sensu stricto)

FIGURE 9. Species abundance (log scale) plotted against rank for 85 living Western Atlantic morphospecies of Polystira. Only five species are represented by more than 100 specimens in the major museum collections examined (see text). The most numerous species is P. starretti Petuch (1685 specimens), the next two most numerous are P. albida (Perry) (770) and an undescribed species, Polystira R-GUY-1 (743 specimens). In contrast, 28 are known from just a single specimen (=singleton).