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 ?
The study's lead author Jakob Vinther, a senior lecturer with the School of Earth Sciences at the University of Bristol in the United Kingdom, told (https://www.livescience.com/64857-ancient-worm-hidden-jaws.html) Live Science that while Amiskwia has a resemblance to its cousins in the arrow worm family, it didn't actually have their distinctive structures, such as spines near the head that are used for catching and holding on to prey.
A possible Lower Cambrian chaetognath (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.