noun (plural same or pearlfishes)
- 1A long slender fish found chiefly in warmer seas, which lives inside the shells of bivalve molluscs or the body cavities of sea cucumbers and other invertebrates.
More example sentences
- Family Carapidae: several genera and species
- One creature that takes advantage of the movement of water to the respiratory trees in the sea cucumber is the pearlfish, or cucumber fish (Carapidae).
- Cardinalfishes and pearlfishes live inside large gastropods and mollusks.