Figure 1 in Description of a new species of Mesochaetopterus (Annelida, Polychaeta, Chaetopteridae), with redescription of Mesochaetopterus xerecus and an approach to the phylogeny of the family

Figure 1. Mesochaetopterus rogeri sp. nov. A, B, Two typical positions of the protruded tentacles in living worms (underwater pictures taken by L. Dantart). C, Regions A, B, and C (preserved worm, morphotype with reddish bands). D, Ventral view of region A (preserved worm, morphotype without reddish bands). E, Detail of the anterior end (dorsal view). F, Detail of the anterior end (dorsal view, tentacles removed). Ar, region A; b1–b3, segments of region B; d1–d3, dorsal rami of region-B segments; v1–v3, ventral rami of region-B segments; Cr, region C. Scale bars are in cm.