This research has been carried out to investigating of some biological aspects of scallop, Chlamys varia distributing in Gulf of Gerence (Aegean Sea), June 2011 – December 2012. A total of 326 samples were collected, 86 (26%) female, 94 (29%) male and 146 (45%) were immature. Height and weight of the samples varied between 30.98 – 63.12 cm (50.68 ± 6.03) total height and 3.34 – 28.19 g (16.20 ± 4.74), respectively. The size and dry weight frequency distribution and height – dry weight relationships for each sex of the scallop were studied. The relation between height (H) and dry weight (W) was determined as W = 0.0004H 2.701 (r2 = 0.903). This was calculated for females as W = 0.0005H2.660 (r2 = 0.937), and for males W = 0.0002H2.848 (r2 = 0.954). The regressions of dry weight – height, dry weight – breadth were computed allometric; breadth – height and thickness – hight were found linear relationship