A NEW SPECIES OF POLYDORA (POLYCHAETA, SPIONIDAE) ASSOCIATED WITH THE EXCAVATING SPONGE CLIONA VIRlDIS (PORIFERA, HADROMERIDA) IN THE NORTHWESTERN MEDITERRANEAN SEA
نویسندگان
چکیده
A new species of Polydora is described from the Catalan coast of the north western Mediterranean Sea. The species has exclusively been found in association with specimens at the three growth stages of the excavating sponge Cliona viridis, and is closely related to Polydora armata. It mainly differs from its closest relatives by: (l) the rounded entire anterior margin of the prostomium; (2) the unusual hook-shaped row arrangement of the modified spines on its posterior notopodia; and (3) the stout flattened modified spines, which have tips hooked in different degrees depending on their position on the notopodia.
منابع مشابه
New records and description of four new species of spionids (Annelida: Polychaeta: Spionidae) from the Philippines: the genera Dispio, Malacoceros, Polydora, and Scolelepis, with notes on palp ciliation patterns of the genus Scolelepis
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