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Annelida

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
An`nel´i`da
n. pl.1.(Zool.) A division of the Articulata, having the body formed of numerous rings or annular segments, and without jointed legs. The principal subdivisions are the Chætopoda, including the Oligochæta or earthworms and Polychæta or marine worms; and the Hirudinea or leeches. See Chætopoda.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.Annelida - segmented worms: earthwormsAnnelida - segmented worms: earthworms; lugworms; leeches
animal kingdom, Animalia, kingdom Animalia - taxonomic kingdom comprising all living or extinct animals
annelid, annelid worm, segmented worm - worms with cylindrical bodies segmented both internally and externally
Archiannelida, class Archiannelida - a class of Annelida
class Polychaeta, Polychaeta - marine annelid worms
class Hirudinea, Hirudinea - hermaphroditic aquatic or terrestrial or parasitic annelids
phylum - (biology) the major taxonomic group of animals and plants; contains classes


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EARTHWORMS AND REDWORMS Earthworms are members of the phylum Annelida, or ringed animals.
Pontos 1 2 3 4 5 Annelida Hyrudinea 0 0 0 13 3 Oligochaeta 97 180 259 0 20 Mollusca Bivalve 241 88 99 0 10 Gastropoda 25 2 433 4 20 Plathyelmintes Turbellaria 48 7 178 0 28 Artropoda Crustacea Aeglidae 2 5 1 0 6 Hyallelidae 5 0 0 0 21 Aracnida Acari 5 1 21 0 16 Aracnidae 1 0 0 0 1 Insecta Collembola 73 33 4 0 8 Coleoptera Elmidae 575 164 1.
Eyes appear in the bilaterally symmetrical animals in the protostome invertebrate branch, including the Phylum Arthropoda (jointed leg animals), Annelida (segmented worms), and Mollusca (bivalves, snails, and cephalopods).
 
 
 
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