Abstract.– The diet of the angular rough shark Oxynotus centrina (Linnaeus, 1758) was studied from specimens collected off the Languedocian coast (southern France). Of the 102 examined stomach contents, 57 were empty; the vacuity index of males did not significantly differ from that of females. The food items were analyzed as percentage frequency of occurrence, percentage of numerical abundance, percentage mass composition, index of relative importance (IRI), expressed as a percentage (% IRI) to quantify the diet. The diet of O. centrina consisted of one major systematic group, Polychaeta (% IRI = 60.01), three accessory groups, Sipunculidae (% IRI = 18.56), Crustacea (% IRI = 13.95) and Teleostei (% IRI = 7.43), one occasional group, Echinodermata (% IRI = 18.44) and a particular polychaete, Platynereis dumerilii (% IRI = 13.33). O. centrina is a suction feeder specialized in wormlike preys.