Figure 3 in Long forgotten record of a freshwater leech on Madagascar indicates a host-associated dispersal event from continental Africa

Figure 3. External morphology of a Placobdelloides multistriatus specimen from F. Sikora's sample, Andrahomana, Southern Madagascar (ZIN Hirudinea 2227: specimen No 2). (a) Dorsal view. (b) Ventral view. (c) Anterior region (dorsal view). Abbreviations: MO, mouth; AS, anterior sucker; PS, posterior sucker; MS, traces of the median light (aureate) stripe; mg, male gonopore; and fg, female gonopore. Body somites are indicated by roman numerals; symbols a1, a2, and a3 indicate the number of annulus. Scale bars = 1.0 mm (a-b) and 0.5 mm (c). Photos: Tatyana A. Eliseeva; graphics: Ivan N. Bolotov.