Figure 2 in Phylogeny of the Diopatra generic complex with a revision of Paradiopatra Ehlres, 1887 (Polychaeta: Onuphidae)

Figure 2. Scheme of anterior region of Eunicidae (A) and Onuphidae (B–P), showing position and shape of prostomial and peristomial appendages and sensory organs: A–B, degree of frontal lip development; C–H, shape of frontal lips; I–L, shape of nuchal organs; M–N, shape of anterior fold of peristomium; O–P, position of peristomial cirri. Large circles represent position of prostomial appendages: palps and antennae; small circles represent position of peristomial cirri.