escolar

Any of several slender fishes of the family Gempylidae, especially Lepidocybium flavobrunneum, of warm marine waters.

[Spanish, student (from the spectaclelike rings around its eyes), from Late Latin scholāris, of a school. See scholar.]

The noun has one meaning:

Meaning #1: large snake mackerel with rings like spectacles around its eyes
  Synonym: Lepidocybium flavobrunneum