Chaetognatha
The Chaetognatha or chaetognaths (meaning ''bristle-jaws'') are a phylum of predatory marine worms that are a major component of plankton worldwide. Commonly known as arrow worms, about 20% of the known Chaetognatha species are benthic, and can ...
.
Families
* Bathybelidae Bieri, 1989Bieri, R. (1989). Krohnittellidae and Bathybelidae, new families in the phylum Chaetognatha; the rejection of the family Tokiokaispadellidae and the genera ''Tokiokaisapadella'', ''Zahonya'', and ''Aberrospadella''. ''Proceedings of the Biological Society of Washington'', 102(4), 973–976.
* Krohnittidae Tokioka, 1965
* Pterokrohniidae Bieri, 1991Bieri, R. (1991). Systematics of the Chaetognatha. In Bone, Q., Kapp, H. & Pierrot-Bults, A. (Eds.), ''The Biology of Chaetognaths''. Oxford: Oxford University.
* Pterosagittidae Tokioka, 1965
* Sagittidae Claus & Grobben, 1905Claus, C. & Grobben, K. (1905). ''Lehrbuch der Zoologie''. 7th edition. Marburg-Heßen: NG Elwertsche Verlagsbuchhandlung.
See also
*
Taxonomy of invertebrates (Brusca & Brusca, 2003)
The biological systematics and taxonomy of invertebrates as proposed by Richard C. Brusca and Gary J. Brusca in 2003 is a system of classification of invertebrates, as a way to classify animals without backbones.
Prokaryotes
*Kingdom
*Kingdom ...