Two new species of Spionidae (Polychaeta) from Tahiti, French Polynesia

Two new species of Spionidae, Scolelepis (Scolelepis) melasma and S. (S.) d icha are described from the intertidal area of exposed Tahitian beaches. Th e species co-occur and are restricted to basaltic sandy beaches. Scolelepis (S.) melasma is characterized by the absence of an occipital tentacle, neu ropodial unidentate, hooded hooks beginning on setiger 40-41, notopodial ho oded hooks absent and branchiae fused basally. Scolelepis (S.) dicha also l acks an occipital tentacle, with neuropodial bidentate, hooded hooks beginn ing from setiger 26-32 and with posterior neuropodia having almost all hood ed hooks, notopodal hooks absent, and branchiae fused basally.