Description of a new species of the costata-group (Cladocera, Chydoridae, Aloninae) from Brazil

作者：Sousa Francisco Diogo R^*; Santos Sandro; Guentzel Adriana Maria; Diniz Leidiane Pereira; De Melo Junior Mauro; Elmoor Loureiro Lourdes M A

来源：Zootaxa, 2015, 4040(4): 445-457.

DOI：10.11646/zootaxa.4040.4.4

• Alona costata-group
• head pores
• morphology
• taxonomy
• Neotropics
• South America

The aim of this study is to describe a new species of the costata-group from Brazil. Alona margipluma sp. nov. shares morphological traits with A. costata Sars, 1862, A. natalensis Sinev, 2008, and A. cheni Sinev, 1999, but differs from them in: (i) thin setulae between the marginal setae on the valves, (ii) setae 4-5 on the exopodite of limb III long and different in length, (iii) bottle-shaped sensillum on the basal endite of limb IV. For identification of Alona margipluma sp. nov. it is necessary to check carefully the main head pores and postabdomen characters since the former superficially resemble A. iheringula, A. setigera and Alona guttata.

• 出版日期2015-11-12