Chapter

Phylogeny

Taisoo Park

in Taxonomy and Distribution of the Calanoid Copepod Family Heterorhabdidae

Published by University of California Press

Published in print April 2001 | ISBN: 9780520098428
Published online March 2012 | e-ISBN: 9780520916029 | DOI: http://dx.doi.org/10.1525/california/9780520098428.003.0011
Phylogeny

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This chapter discusses the general morphology of the body and appendages of the Heterorhabdidae. It notes that the species can readily be distinguished from the Lucicutiidae, Augaptilidae, and any other calanoid families by the following synapomorphies: the left caudal ramus is longer than the right and normally it is fused with the anal segment; the fourth marginal seta of the left caudal ramus is unarmed and greatly elongated; the basis of the male right P5 has a large plumose inner lobe. The chapter observes that based on these synapomorphies, only the following seven genera are referable to the family: Disseta, Mesorhabdus, Heterostylites, Hemirhabdus, Neorhabdus, Paraheterorhabdus, and Heterorhabdus.

Keywords: morphology; body; appendages; Heterorhabdidae; Lucicutiidae; Augaptilidae; calanoid families; synapomorphies

Chapter.  961 words. 

Subjects: Zoology and Animal Sciences

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