Abstract
Pisione parapari n. sp. is described from shallow waters off North-West Spain. This new species and P. Remota (Southern, 1914) are the only representatives of the genus and family reported from Iberian waters. P. Parapari is characterised by the presence of several (1–4) non-succesive male copulatory organs, and by having slightly elongated dorsal cirri in chaetiger 2, an undivided neuropodial lobe, parapodia provided with long-bladed compound chaetae, and smooth palps.