Figure 1. Spionidae larval morphology. A, 16 in Origin of the pointed snout in Scolelepis and the mouth region in spionid polychaetes (Annelida: Spionidae)

Figure 1. Spionidae larval morphology. A, 16-chaetiger larva, leħ lateral view. B, 26-chaetiger larva, ventral view. C, 32-chaetiger larva, leħ lateral view. D, 29-chaetiger larva, leħ lateral view. Scale bars: A, 50 µm; B–D, 100 µm. A–C, Scolelepsis goodbodyi. D, Spionidae sp. A–D, São Sebastião, São Paulo, Brazil.