arrow worm

Related to arrow worm: phylum Chaetognatha

arrow worm

Any of various small slender marine worms of the phylum Chaetognatha, having a narrow, almost transparent body and spines on each side of the mouth that are used for grasping prey. Also called chaetognath.

Translations

nuolimato

Mentioned in ?

chaetognath

References in periodicals archive ?

Deuterostome is a broad category that includes animals ranging from the gigantic blue whale to the tiny arrow worm.

Meet Saccorhytus Coronarius, Humans' Earliest Known Ancestor

Haddock and Case (1994) reported the first known species of bioluminescent arrow worm, Caecosagitta macrocephala (Fowler, 1904), a deep-living species usually found at depths greater than 700 m.

Bioluminescent organs of two deep-sea arrow worms, Eukrohnia fowleri and Caecosagitta macrocephala, with further observations on bioluminescence in chaetognaths

Some examples include arrow worms (or chaetognaths - see photo above) and amphipods (photo at right), which are voracious predators on copepods and larvae of larger species.