A New  Acanthocyclops   Kiefer , 1927 (Copepoda: Cyclopoida) from Central Mexico with Comments on the Distributionof the Genus in Middle America | Zendy

Mercado Nancy | Zendy; SuárezMorales Eduardo | Zendy; SilvaBriano M. | Zendy

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A New Acanthocyclops Kiefer , 1927 (Copepoda: Cyclopoida) from Central Mexico with Comments on the Distributionof the Genus in Middle America

Author(s) -

Mercado Nancy,

SuárezMorales Eduardo,

SilvaBriano M.

Publication year - 2006

Publication title -

international review of hydrobiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.524

H-Index - 52

eISSN - 1522-2632

pISSN - 1434-2944

DOI - 10.1002/iroh.200510856

Subject(s) - seta , cyclopoida , biology , genus , clade , zoology , lineage (genetic) , ecology , taxonomy (biology) , subtropics , crustacean , phylogenetics , copepod , biochemistry , gene

A new species of Acanthocyclops Kiefer is described from central Mexico. It differs from its congeners by a combination of characters including mainly: 11–13 antennular segments, a spine formula of 3444 and modified setae on legs 2–4. The presence of a compound distal antennular segment is aberrant within the Cyclopoida. The new species seems to be related to Nearctic forms of the vernalis – robustus clade. Ancestors of this lineage probably reached central Mexico as a result of glaciation events and the new species is a remain of stranded postglacial populations; some of these forms were succesful in colonizing tropical lands. A key for the identification of the species of Acanthocyclops recorded in Mexico is included. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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