Polychaetes of Marenzelleria Genus (Spionidae) in the Southeastern Baltic Sea (Russian EEZ)

Аннотация

The habitation of two closely related polychaete species of Marenzelleria genus in the Southeastern Baltic Sea is proved for the first time by a morphological approach. M. neglecta lives in the shallow, euthrophic, oligohaline Vistula and Curonian lagoons. M. arctia dwells in relatively deep, mesothrophic and mesohaline marine waters down to the depths of 70–80 m. The spatial distribution and occurence of the species in the Southeastern Baltic Sea are described.