ceratiid (seratiid)

and n. I. a. Of or pertaining to the Ceratiida. II. n. A fish of the family Ceratiida . Ceratiidæ Ceratiidæ (ser-a-ti'i-dē), n. pl. [NL., Ceratias holbölli. of the upper, and pseudo brachia with three actinosts. It is one of the most characteristic of the deep sea types of fishes, and unusual variation occurs among its representatives.