Éditeur(s) : Observatoire Océanologique de Banyuls sur mer Résumé : A new species of a polychaetous annelid belonging to the genus Polydora is described. It was collected on the continental shelf of the western Mediterranean sea. Some morphological features are not consistent with the generic diagnosis. [NOT CONTROLLED OCR] Vie et Milieu (Observatoire Océanologique de Banyuls sur mer), 1974 , Vol. 24 , N. 3A , P. 479-486