A new genus and species of bottom-living calanoid (Copepoda) from Florida and Colombia

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Abstract
A new species, Epacteriscus rapax ♀, ♂, is described and figured. It is considered to belong to a family of its own which shows some similarities with the Arietellidae and Ridgewayiidae. The mouthparts are reduced and specialized. The mandibular blade is unique among calanoids in having a strong, coarsely serrated process which is directed ventrally and probably used for catching or holding the prey. The legs are generally unspecialized with no reduction in segmentation except for the 5th legs of the male. The species was obtained in shallow water among corals.