Chaetognatha


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Noun1.Chaetognatha - arrowworms: a group of small active transparent marine wormsChaetognatha - arrowworms: a group of small active transparent marine worms
animal kingdom, Animalia, kingdom Animalia - taxonomic kingdom comprising all living or extinct animals
arrowworm, chaetognath - any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth
genus Sagitta - chief genus of Chaetognatha including the largest arrowworms
genus Spadella - marine worms resembling the sagittas but with a broader body and only one pair of lateral fins
phylum - (biology) the major taxonomic group of animals and plants; contains classes
References in periodicals archive ?
Invertebrate zoologists consider the phyla Dicyemida, Orthonectida, Placozoa, Cycliophora, Entoprocta (Kamptozoa), Chaetognatha, Pterobranchia, and Enteropneusta along with the order Seisonidae.
Chaetognatha, Thaliacea, Euphausiacea and Pelagic Polychaeta in the Colombian Pacific Ocean, during two periods in 1996 (La Nina) and two periods in 1997 (El Nino).
Chaetognatha of the Namibian Upwelling Region: taxonomy, distribution and trophic position.
In total, 61 holoplankton taxa belonging to 7 categories: Protozoa, Cnidaria, Rotifera, Crustacea (Copepoda, Cladocera, Ostracoda, Amphipoda and Mysidacea), Chaetognatha, Mollusca, Larvacea, and 8 different types of meroplankton were also recorded (Table IV).
Shiphonophora, Heteropoda, Copepoda, Euphausiacea, Chaetognatha and Salpidae.
Distribution and biomass of arrow worms (Chaetognatha) in Golfo de Nieoya and Golfo Dulce, Costa Rica.
Chaetognatha 0.36 0.18 <.01 0.07 Cnidaria Echiura Glottidia pyramidata Sipuncula Tubificidae Total 100 100 Southern kingfish %F %N %W IRI Bony fishes 24.5 7.6 21.87 722.02 Actinopterygii 20.1 6.78 9.82 333.68 Anchoa hepsetus 0.25 0.09 0.38 0.12 Anchoa mitchilli 0.25 0.03 0.3 0.08 Anchoa spp.
Fish and planktonic invertebrates that were accidentally collected by the trawl (e.g., Chaetognatha, Euphausiacea, Scyphozoa) were removed so that only benthic invertebrates were included in the sample analysis.
2 and 5 Other Metazoa Phyla Other Eukaryote Phyla Chaetognatha Ciliophora Ctenophora Other Alvelata Entoprocta Amoebozoa Hemichordata Cryptophyta Loricifera Loukozoa Gnathifera Glaucophyta Onochophora Choanozoa Porifera Picozoa Rotifera Foraminifera Xenoturbeiidea Rhodophyta Acanthocephala Myzozoa Chordata Apusozoa Cycliophora Heliozoa Gnathostomulida Percolozoa Kinohycha Euglenozoa Mesozoa Haptophyta Nematomorpha Metamunada Placozoa Cercozoa Priapulida Radiozoa Sipuncula Uncultured unicellular Uncultured Metazoa Eukaryote Acknowledgments
The number of OL (by-catch) comprising largely of the larvacean; Oikopleura spp., the chaetognatha; Parasagitta (Sagittidae) spp., crab larvae and fish larvae are presented in Table 2.