Orobdella masaakikuroiwai sp. n., holotype, KUZ Z694. A Dorsal and B ventral views of somites I–VIII. C Dorsal and D ventral views of somites XXV–XXVII and caudal sucker. E Ventral view of somites X–XIII. F Ventral view of gastropore and female gonopore. G Ventral view of gastroporal duct. Scale bars, 1 mm (E), 0.5 mm (A–D, G) and 0.25 mm (F). Abbreviations: af, annular furrow; an, anus; cl, clitellum; cp, crop; fg, female gonopore; gd, gastroporal duct; gp, gastropore; mg, male gonopore; np, nephridiopore; and ph, pharynx.