1a small fish of the Indo-Pacific, with a long flattened snout and a laterally compressed body encased in thin bony shields that meet to form a sharp ridge on the belly.
Family Centriscidae: several genera and species, including Aeoliscus strigatus, which swims in a head-down vertical posture
2a small brightly coloured wrasse with a steeply sloping forehead, living chiefly in coastal waters of the western Atlantic.
Genus Hemipteronotus, family Labridae: several species
