title: Reproductive biology of the rock-borer <i>Petricola lithophaga</i> (Retzius, 1788) (Bivalvia: Veneridae) in the Black Sea
abstract: For the first time, aspects of the reproduction of the little-known rock-borer mollusc Petricola lithophaga (Retzius, 1788) are described. Specimens were studied during the period from June 2012 to June 2014 (Black Sea, Sevastopol Bay). Histological methods were used to describe gametogenesis stages and spawning of the molluscs. The size and age of onset of sexual maturity, individual fecundity and other factors are defined.
journal: Molluscan Research