A revision of the genus Disparalona (Cladocera, Chydorinae) in South America

  • Francisco Diogo R. Sousa Unidade Acadêmica Especial de Ciências Biológicas, Universidade Federal de Jataí – UFJ, BR 364 km 195 n°3800, CEP 75801615, Jataí, GO
  • Lourdes M.A. Elmoor-Loureiro Grupo de Estudos de Ecossistemas Aquáticos (GEEA), Universidade Católica de Brasília (UCB)
  • Riccardo Mugnai Labciclos laboratórios de biogeociclos / Limnologia, Universidade Federal do Maranhão, Chapadinha, MA
  • Eliana Aparecida Panarelli Universidade do Estado de Minas Gerais - UEMG, Av. Mário Palmério, 1001, Bloco 2, CEP 38200-000, Frutal, MG
  • Juan César Paggi Laboratorio de Plancton, Instituto Nacional de Limnología (CONICET-UNL), Santa Fé
DOI: https://doi.org/10.5852/ejt.2018.460
Keywords: Disparalona hamata, hyporheic, labral keel, Mixopleuroxus, morphology

Abstract

The genus Disparalona Fryer, 1968 comprises a well-defined species complex, the hamata-group, which might have sibling species in South America. This hamata-group needs urgent revision. Besides that, a complete morphological evaluation of the endemic species D. leptorhyncha (Daday, 1905) is lacking. Thus, the aim of the present study is to revise populations of species of the hamata-group in South America and to redescribe D. leptorhyncha. Our findings pointed to an occurrence of species which are part of the Disparalona (Mixopleuroxus) linage. Currently, the Neotropics have the highest diversity to the genus, with three species of the hamata-complex – D. (M.) hamata (Birge, 1879), D. (M.) lucianae sp. nov., D. (M.) tenuispina sp. nov. – in addition to D. (M.) leptorhyncha. These species can be differentiated from each other by the morphology of their rostrum, labrum, and postabdomen.

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Published
2018-09-13
How to Cite
Sousa, F. D. R., Elmoor-Loureiro, L. M., Mugnai, R., Panarelli, E. A., & Paggi, J. C. (2018). A revision of the genus Disparalona (Cladocera, Chydorinae) in South America. European Journal of Taxonomy, (460). https://doi.org/10.5852/ejt.2018.460
Issue
No. 460 (2018): A revision of the genus Disparalona (Cladocera, Chydorinae) in South America
Section
Zoology
Copyright (c) 2018 Francisco Diogo R. Sousa, Lourdes M.A. Elmoor-Loureiro, Riccardo Mugnai, Eliana Aparecida Panarelli, Juan César Paggi

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