Lewis & Short

1. pĕlōris, ĭdis, f., = πελωρίς, a large shell-fish, the giant mussel, Varr. L. L. 5, § 77 Müll.; Hor. S. 2, 4, 32; Cels. 2, 29; Plin. 32, 9, 31, § 99; Mart. 6, 11, 5; 10, 37, 9.