arrow worm


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Related to arrow worm: phylum Chaetognatha

arrow worm

n.
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
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References in periodicals archive ?
Deuterostome is a broad category that includes animals ranging from the gigantic blue whale to the tiny arrow worm.
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.
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.