Crossword clue: the class of vertebrata that includes the fishes. the principal divisions are elasmobranchii, ganoidei, and teleostei.
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
pisces
6 letters
web-def
the twelfth sign of the zodiac; the sun is in this sign from about February 19 to March 20