Orobdella okanoi sp. n., holotype, KUZ Z1671. A dorsal, B ventral views of somites I–VIII; C dorsal, D ventral views of somites XXIV–XXVII and caudal sucker; E ventral view of somites XI–XIII; F ventral view of gastropore and female gonopore; G ventral view of gastroporal duct. Scale bars: A–E = 2 mm; F = 0.25 mm; G = 1 mm.

 
 
  Part of: Nakano T (2016) Four new species of the genus Orobdella from Shikoku and Awajishima island, Japan (Hirudinida, Arhynchobdellida, Orobdellidae). Zoosystematics and Evolution 92(1): 79-102. https://doi.org/10.3897/zse.91.7616