Inventory of Marine Molluscs in the Taza National Park of Algeria in the western Mediterranean

In the marine section of Taza National Park on the Algerian coasts in the western Mediterranean, 97 species of molluscs have been documented comprising 37 bivalves, 48 gastropods, one polyplacophoran and 11 cephalopods. The main families are Donacidae with Donax trunculus as the main species (10.59% of bivalves populations) and Nassariidae with Rissoae membrancea as the main species (14.46% of gastropods populations).This includes the discovery of five species new to the Algerian coast, all belonging to the class Gastropoda: Felimare picta (R.A. Philippi, 1836), Felimida luteorosea (Rapp, 1827), Felimida purpurea (Risso,1831), Platydoris argo (Linnaeus, 1767) and Antiopella cristata (Delle Chiaje, 1841). This specific richness represents 23.72% of the malacological richness recorded along the Algerian coast of which bivalves, gastropods, polyplacophores and cephalopods represent 18.14%, 30.38%, 0.80% and 30.56% of the respective specific richness of the different classes of molluscs of the Algerian coast.