FIGURE 16 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 16. Eclipidrilus palustris (A­B, G­H, from the type series, Polk Co., Florida), (C, E­F, Rock Springs Run, Florida), (D, Tootoosahatchee Creek, Florida). A—sagittal section of X, showing ventral pad and associated muscle. B—male pore, showing epidermal fold, with part of penis protruding; sagittal section. C—transverse section of penial structure. D—ental end of penial structure; sagittal section of a partially mature worm. E—spermathecal vestibule, from a transverse section. F—atrial ampulla, transverse section showing muscle layers and small prostate glands. Gental part of atrial ampulla, with outer muscle layer diagonal to the long axis; sagittal section. Hectal part of atrial ampulla, with outer muscle parallel to long axis. Abbreviations: ad—atrial duct; ef—epidermal fold; lm—longitudinal­diagonal muscle; mu—muscle; pe—penis; pp—penial papilla; ps—penial sac; tm—transverse­circular muscle. Scale bars 50 µm.