Plehnia cascaisensis sp. nov. Histological sections are postero-anteriorly oriented: A. Dorsal view of a living specimen (holotype, MNHNC MB16-000107); B. Dorsal view of a living specimen (additional material, MB16-000108); C. Detail of the eyes (additional material); D. Histological section of the tentacle (holotype); E. Histological section of the male copulatory organs (holotype); F. Histological section of the male and female organs (holotype). Abbreviations: cg, cemental glands; el, epithelial lining; ev, external vagina; fp, female pore; iv, internal vagina; ma, male atrium; mp, male pore; mw, muscular wall; ov, oviduct; ph, pharynx; pp, penis papilla; pv, prostatic vesicle; t, tentacle; vg, vesicular glands.

 
 
  Part of: Pérez-García P, Gouveia F, Calado G, Noreña C, Cervera JL (2024) Acotylea (Platyhelminthes, Polycladida) from the southern and western Iberian Peninsula, with the description of five new species. Zoosystematics and Evolution 100(4): 1487-1513. https://doi.org/10.3897/zse.100.128211