Cnidaria: Colonial Hydrozoa (Siphonophorae)

Priscilla Licandro, Claude Carré and Dhugal J. Lindsay

in Marine Plankton

Published in print February 2017 | ISBN: 9780199233267
Published online October 2017 | e-ISBN: 9780191835698 | DOI:
Cnidaria: Colonial Hydrozoa (Siphonophorae)

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  • Aquatic Biology
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This chapter describes the taxonomy of colonial Hydrozoa. Siphonophores are pelagic organisms that can be found the whole year round, sometimes in a characteristic season, inshore and offshore at all latitudes and depths. As in all hydrozoans, they carry tentacles equipped with stinging cells (nematocysts), which are used by the colony to immobilize and kill their prey. The chapter covers their life cycle, ecology, and general morphology. It includes a section that indicates the systematic placement of the taxon described within the tree of life, and lists the key marine representative illustrated in the chapter (usually to genus or family level). This section also provides information on the taxonomic authorities responsible for the classification adopted, recent changes which might have occurred, and lists relevant taxonomic sources.

Keywords: colonial Hydrozoa; siphonophores; taxonomy; zooplankton; life cycle; ecology; morphology

Chapter.  3870 words.  Illustrated.

Subjects: Aquatic Biology ; Animal Pathology and Diseases

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