<i>Musculus minutus</i> Scarlato, 1960 (Mytilidae), a new species of bivalve mollusks for Russian waters of the Sea of Japan
The first record of the bivalve mollusk Musculus minutus Scarlato, 1960 (Mytilidae) in the Russian waters of the Sea of Japan is reported. Fourteen live specimens with L=2.7-7.2 mm were collected in June 2021 in the waters of northern Primorye at the depth range of 49-67 m on sandy-muddy and muddy bottom at two stations with coordinates: 44°39.30' N and 136°12.00' E; 44°28.60' N and 136°08.20' E. These are illustrated and described in details. The data on ecology and geographical range of the species are summarized