Two new marine species from South Korea with remarks on the family Stylochidae (Acotylea, Polycladida, Plathelminthes) Author Bulnes, V. N. Author Faubel, A. Author Park, J. - K. text Journal of Natural History 2005 J. Nat. Hist. 2005-05-12 39 23 2089 2107 http://dx.doi.org/10.1080/00222930500081997 journal article 10.1080/00222930500081997 1464-5262 5215310 E6427790-6DB4-4633-AD85-7A5FB041FF2D Genus Distylochus Faubel, 1983 Diagnosis Stylochidae with marginal, tentacular, and few scattered cerebral eyespots. Male and female tracts open in a common pore, or the genital pores are very close together near the hind margin. Male copulatory apparatus with papilla-like unarmed penis and seminal vesicle which is developed as a double-vesicle-system. The proximal vesicle is separated by a constriction, the muscle wall of which is distinctly fainter than that of the distal one. Prostatic vesicle with fingerlike extensions of inner glandular lining; polyglandular type . Lang’s vesicle lacking.