FIGURE 14 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 14. Head and pharynx of Eclipidrilus species; sagittal sections. A—E. pacificus, from Peavine Ridge, Oregon, showing the thin ventral wall of the pharynx. B—E. lacustris, from the Swan River, Montana; the pharynx is nearly as thick ventrally as dorsally.