The Cyclopoida are an order of small crustaceans from the class Copepoda. Like many other copepods, members of Cyclopoida are small, planktonic animals living both in the sea and in freshwater habitats. They are capable of rapid movement. Their larval development is metamorphic, and the embryos are carried in paired or single sacs attached to first abdominal somite.
Distinguishing features Cyclopoids are distinguished from other copepods by having first antennae shorter than the length of the head and thorax, and uniramous second antennae. The main joint lies between the fourth and fifth segments of the body.
Taxonomy Cyclopoida contains 30 families:
Archinotodelphyidae Lang, 1949 Ascidicolidae Thorell, 1859 Botryllophilidae Sars G.O., 1921 Buproridae Thorell, 1859 Chitonophilidae Avdeev & Sirenko, 1991 Chordeumiidae Boxshall, 1988 Corallovexiidae Stock, 1975 Cucumaricolidae Bouligand & Delamare-Deboutteville, 1959 Cyclopettidae Martínez Arbizu, 2000 Cyclopicinidae Khodami, Vaun MacArthur, Blanco-Bercial & Martinez Arbizu, 2017 Cyclopidae Rafinesque, 1815 Cyclopinidae Sars G.O., 1913 Enterognathidae Illg & Dudley, 1980 Enteropsidae Thorell, 1859 Fratiidae Ho, Conradi & López-González, 1998 Giselinidae Martínez Arbizu, 2000 Hemicyclopinidae Martínez Arbizu, 2001 Lernaeidae Cobbold, 1879 Mantridae Leigh-Sharpe, 1934 Micrallectidae Huys, 2001 Notodelphyidae Dana, 1853 Oithonidae Dana, 1853 Ozmanidae Ho & Thatcher, 1989 Paralubbockiidae Boxshall & Huys, 1989 Psammocyclopinidae Martínez Arbizu, 2001 Pterinopsyllidae Sars G.O., 1913 Schminkepinellidae Martínez Arbizu, 2006 Smirnovipinidae Khodami, Vaun MacArthur, Blanco-Bercial & Martinez Arbizu, 2017 Speleoithonidae Rocha & Iliffe, 1991 Thaumatopsyllidae Sars G.O., 1913 Cyclopoida incertae sedis – 8 genera
Several more families are included in suborder Poecilostomatoida, a temporary name for the "poecilostome lineage"
References
External links
Cyclopoida fact sheet - Guide to the marine zooplankton of south eastern Australia Cyclopoida pictures Mikko's Phylogeny Archive: Cyclopoida