FIG. 7 in Description of seven new species of Libyodrilus Beddard from Cameroon, with a key to the species of the genus (Oligochaeta: Eudrilidae)

FIG. 7. Libyodrilus spp., ventral view showing genital fields. (A) crassisetus; (B) platybrachyoncus; (C) tenuisetus; (D) kamerunensis (redrawn from Michaelsen, 1915: 229, figure 7; not to scale); (E) simsi (redrawn from Clausen, 1965: figure 4); (F) violaceus (redrawn from Beddard, 1891b: figure 2, pl. 38; not to scale).