FIGURE 5 in Enchytraeidae (Oligochaeta, Annelida) from a field site in Portugal, with the description of five new species and a redescription of Enchylea heteroducta Nielsen & Christensen, 1963

FIGURE 5. Comparison of the ventral sides of the clitellum in the four new species of Fridericia, schematic. A. F. s o u s a i sp. nov. B. F. roembkei sp. nov. C. F. ciliotheca sp. nov. D. F. m a rg i n a t a sp. nov. Areas in dark grey: granulocytes only. Areas in light grey: granulocytes and hyalocytes alternating.