title: Redescription of Coronatella poppei (Richard, 1897) (Crustacea, Branchiopoda, Chydoridae) and a revision of the genus in Brazil, with descriptions of new taxa.
abstract: The description of the genus Coronatella Dybowski & Grochowski, 1894 (Cladocera: Chydoridae: Aloninae) pointed towards the need for a revision of species on a worldwide scale. For the Neotropical region, the main challenge noted was the redescription of Coronatella poppei (Richard, 1897). We redescribed this species and revised populations from Brazil that had previously been assumed to be Alona poppei (= C. poppei). Our results indicate that C. poppei is distributed in the southern part of South America. In Brazil, two other taxa are recognized, Coronatella paulinae sp.nov. and Coronatella serratalhadensis sp.nov., which are morphologically distinguished both from each other and from C. poppei. These species also have different geographic distributions. The Brazilian Coronatella fauna also comprises Coronatella monacantha (Sars, 1901) and a related species, Coronatella undata sp.nov. Our results point towards a previously unknown high diversity of Coronatella in the Neotropical region with several implications for to biogeography of the genus.
authors.affiliation: Núcleo de Estudos em Biodiversidade Aquática, Programa de Pós-graduação em Biodiversidade Animal, Universidade Federal de Santa Maria-UFSM, Av. Roraima 1000, Camobi, CEP 97105-900, Santa Maria, RS, Brazil Laboratório de Biodiversidade Aquática, Universidade Católica de Brasília-UCB, QS7 lote 1, Bloco M, sala 204, CEP 71966-700, Taguatinga, DF, Brazil; Email: sousa_bio@yahoo.com.br.
authors.forename: Francisco Diogo Rocha
authors.initials: FD
authors.lastname: Sousa
authors.affiliation: Laboratório de Biodiversidade Aquática, Universidade Católica de Brasília-UCB, QS7 lote 1, Bloco M, sala 204, CEP 71966-700, Taguatinga, DF, Brazil; Email: unknown.
authors.forename: Lourdes Maria Abdu
authors.initials: LM
authors.lastname: Elmoor-Loureiro
authors.affiliation: Núcleo de Estudos em Biodiversidade Aquática, Programa de Pós-graduação em Biodiversidade Animal, Universidade Federal de Santa Maria-UFSM, Av. Roraima 1000, Camobi, CEP 97105-900, Santa Maria, RS, Brazil; Email: unknown.
authors.forename: Sandro
authors.initials: S
authors.lastname: Santos
mesh_terms: D000818:Animals; D044822:Biodiversity; D001938:Brazil; D003445:Crustacea / Q000145:classification* / Q000648:ultrastructure; D005260:Female; D008297:Male