arrowworm

See also: arrow worm

English

An arrowworm (Spadella cephaloptera)

Etymology

arrow +‎ worm

Noun

arrowworm (plural arrowworms)

1. (zoology) A transparent predatory marine worm of the phylum Chaetognatha, found in plankton.

References

• arrowworm on Wikipedia.Wikipedia
• Chaetognatha on Wikispecies.Wikispecies
• Category:Chaetognatha on Wikimedia Commons.Wikimedia Commons