Lisitskaya E. V., Boltachova N. A. The finding of a rare in the Black Sea polychaete Ctenodrilus serratus (Schmidt, 1857) (Annelida, Cirratulidae). Marine Biological Journal, 2020, vol. 5, no. 2, pp. 109-111. https://doi.org/10.21072/mbj.2020.05.2.10



In July 2019, three polychaetae specimens of the genus Ctenodrilus were found in oyster cages on silted oyster shells. The cages from a mussel-and-oyster farm located at the outer roadstead of Sevastopol Bay were suspended at a depth of 6–8 m. The bottom soil under the mussel-and-oyster farm is silted sand, and the depth is of 16 m. During the sampling, water temperature was of +23 °C, and the salinity was of 17.7 ‰. Thus, according to morphological characteristics, polychaetae we found should be classified as Ctenodrilus serratus (Schmidt, 1857). Photographs of alive and fixed polychaetae, chaetae patterns, and a schematic representation of their number by segments are presented. At the beginning of the XX century, a single specimen of this species was found in the Black Sea.


E. V. Lisitskaya

senior researcher, PhD



N. A. Boltachova

senior researcher, PhD




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This work was carried out within the framework of government research assignments of IBSS “Investigation of the mechanisms of controlling production processes in biotechnological complexes with the aim of developing the scientific foundations for the production of biologically active substances and technical products of marine genesis” (No. АААА-А18-118021350003-6) and “Patterns of formation and anthropogenic transformation of biodiversity and biological resources of the Sea of Azov – the Black Sea basin and other parts of the World Ocean” (No. АААА-А18-118020890074-2).



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