Abstract: A total of 99 benthic samples from four stations between Rize and Trabzon (on the Eastern Black Sea) were collected and analyzed according to their qualitative and quantitative aspects. Three genera and 6 species were identified: Nereis zonata and Platynereis dumerilii ranked first in dominance and frequency index values. Of the biotopes examined, Cystoseira barbata was highest in the number of species and diversity index values, whereas Mytilaster lineatus was the lowest. This study represents the first record of Nereis rava along the coast of the Turkish Black Sea.