title: Morphological and molecular data reveal the cryptic diversity among populations ofAeglapaulensis(Decapoda, Anomura, Aeglidae), with descriptions of four new species and comments on dispersal routes and conservation status.
abstract: The taxonomy of the Brazilian aeglid species Aegla paulensis Schmitt, 1942 from two disjunct hydrographic basins is revised using morphological and molecular data. Results show that six disjunctive populations of Aegla paulensis form a species complex. Aegla paulensis sensu stricto is redescribed and Aegla rosanae Campos Jr., 1998 is revalidated. The four remaining populations previously assigned to Aegla paulensis are now recognized as different species, namely Aegla  vanini n. sp., Aegla japi n. sp., Aegla jaragua n. sp. and Aegla jundiai n. sp. All new species are described and illustrated and are well supported by both morphological and molecular data. Aegla lancinhas Bond-Buckup & Buckup in Santos et al., 2015, which until recently was confounded with Aegla paulensis s. str., is supported as a valid species. A key to all members of the A. paulensis species complex is provided, and their phylogenetic and biogeographic relationships to other closely related species is discussed.
authors.affiliation: Department of Zoology, Institute of Biosciences (IB-USP), University of São Paulo, Brazil. Rua do Matão, n. 101, São Paulo, Brazil, 05508090.. jcbm@ib.usp.br.
authors.forename: Juliana Cristina Bertacini
authors.initials: JC
authors.lastname: Moraes
authors.forename: Mariana
authors.initials: M
authors.lastname: Terossi
authors.forename: Raquel Corrêa
authors.initials: RC
authors.lastname: Buranelli
authors.forename: Marcos
authors.initials: M
authors.lastname: Tavares
authors.forename: Fernando L
authors.initials: FL
authors.lastname: Mantelatto
authors.forename: Sérgio Luiz DE Siqueira
authors.initials: SL
authors.lastname: Bueno
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D033381:Anomura / Q000033:anatomy & histology* / Q000145:classification* / Q000235:genetics / Q000254:growth & development; D044822:Biodiversity; D049628:Body Size; D001938:Brazil; D003247:Conservation of Natural Resources; D017753:Ecosystem; D005260:Female; D008297:Male; D009929:Organ Size; D010802:Phylogeny
keywords: Crustacea, Brazil, distributional pattern, hydrographic drainages, identification key, Paraíba do Sul, Ribeira de Iguape, Taxonomy, Tietê, 16Smt