A New Species Of Pseudobranchiomma (Sabellidae, Polychaeta) From The Sea Of Marmara (Turkey)

The present paper deals with the description of specimens of a new species of Pseudobranchiomma Jones, 1962 collected from the Sea of Marmara between 50 and 100 m depths, a genus that, up to now, is represented within the Mediterranean area by only one species. The new species is mainly characterized by having radioles without serrations, well-developed paired compound eyes on radioles, absence of dorsal pinnular appendages, minute interramal eyespots appearing after chaetiger 5, and pointed ventral sacs and lappets. The morphological features of the new species are compared to those of the most similar species.