FIGURE 7 in Description and taxonomic analysis of a tuberculated turtle leech from the Outer Banks, North Carolina, USA, provisionally identified as Placobdella multilineata Moore, 1953 (Hirudinea: Glossiphoniidae)

FIGURE 7. Variation of the dorsal stripe and tubercles in the Albemarle turtle leech. A, interrupted dorsal stripe (PM-15a). B, continuous dorsal stripe (PM-15c). C, no discernible dorsal stripe (PM-12). The primary tubercles, ti and tm on the a2 annulus, and tp on the a3 annulus, together with their bilateral counterparts, constitute a flattened letter 'W'. This configuration is specific for the Albemarle turtle leech. Furthermore, in this species the intermediate tubercles (ti) are invariably the most prominent. Dorsal views. A, B, LED light; C, incandescent light. Scale bar: 10 mm.