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Issue: Vol. 4121 No. 1: 7 Jun. 2016
Type: Article
Published: 2016-06-07
DOI: 10.11646/zootaxa.4121.1.2
Page range: 49–58
Abstract views: 183
PDF downloaded: 1

A new subspecies of Ovalona setulosa (Megard, 1967) (Cladocera: Anomopoda: Chydoridae) from the Caribbean coast of Colombia

Department of Invertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia A. N. Severtsov Institute of Ecology and Evolution, Leninsky Prospect 33, Moscow 119071, Russia.
Universidad del Magdalena, Grupo de investigación en Biodiversidad y Ecología Aplicada. A.A 731 Santa Marta, Magdalena, Colombia.
Crustacea Cladocera Anomopoda taxonomy new subspecies South America

Abstract

A new subspecies of Ovalona setulosa (Megard, 1967) (Cladocera: Anomopoda: Chydoridae) is described based on material from Laguna Navío Quebrado (La Guajira Department), Colombia. Ovalona setulosa arangureni ssp. nov. differs from the nominative subspecies in: (1) major head pores position on head shield; (2) posterior margin of labral keel without clusters of short setules; (3) more elongated postabdomen, with length/height ratio about 2.7-3; (4) male postabdomen with straight dorsal margin in whole distal portion. In outer morphology and morphology of postabdomen, O. setulosa arangureni ssp. nov. can be confused with O. glabra (Sars, 1901), but, like nominative subspecies, differs from it by interrupted connection between major head pores. Our data suggest that diversity of Aloninae species with limited distribution areas in South America is underestimated yet, and areas north and south of Amazon basin can have different local species.

 

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