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.