Figure 6. Scolelepis larval morphology. A, B, 25 in Origin of the pointed snout in Scolelepis and the mouth region in spionid polychaetes (Annelida: Spionidae)

Figure 6. Scolelepis larval morphology. A, B, 25-chaetiger larva of Scolelepis sp., anterior chaetigers, leħ ventrolateral view. Abbreviations: br, provisional serrated bristles; ca, caruncle; la, ciliated lateral organ; ne, neuropodial postchaetal lamella; no, notopodial postchaetal lamella; nu, nuchal organ; pa, palp; ph, palpophore; pt, prototroch; s1, s2, segments 1, 2. Scale bars: A, B, 50 µm. A, B, Carrie Bow Cay, Belize, Caribbean Sea (USNM 1459502).