Lewis & Short

ăpŏlectus, i, m., = ἀπόλεκτος (picked out).

  1. I. A kind of tunny-fish when not a year old, Plin. 32, 11, 53, § 150.
  2. II. Apolecti, pieces for salting, cut from the tunnyfish of that age (pelamis), Plin. 9, 15, 18, § 48.