Specimens of Syllidae (Polychaeta) were collected from a coarse sediment habitat in the intertidal zone of the Chausey Archipelago(English Channel, France). Twenty-one species of Syllidae were identified in this zone, including two new species, which are described herein. Prosphaerosyllis chauseyensis, n. sp. is characterized by a distinct digitiform papilla on antennae, tentacular and dorsal cirri, and by the presence of two sizes of dermal papillae without any specific arrangement. Prosphaerosyllis laubieri, n. sp. is a minute sized species with dorsal cirri similar throughout the body and with small, scattered papillae on the dorsum and ventrum, which are longer and numerous on the palps. One species was reported for the first time in the north-east Atlantic (Parapionosyllis brevicirra) and six were new for both France and the English Channel (Prosphaerosyllis giandoi, Sphaerosyllis glandulata, Sphaerosyllis taylori, Streptosyllis campoyi, Syllis licheri, and Syllis pontxioi). |
