Abstract
Thirty five species of Pectinoidea (33 Pectinidae, 2 Propeamussiidae) are described from Hansa Bay, Papua New Guinea. Serratovola pallula n. sp. is here introduced as new to science. Lectotypes are designated of Pecten cloacatus Reeve, 1853 and Pecten tricarinatus Anton, 1838, and type localities are designated for Pecten vexillum Reeve, 1853, Pecten spectabilis Reeve, 1853, and Ostrea squamosa Gmelin, 1791.