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Invertebrate Systematics Invertebrate Systematics Society
Systematics, phylogeny and biogeography
RESEARCH ARTICLE

An integrative taxonomy study of cave-dwelling aeglids (Decapoda: Anomura: Aeglidae) from Natural Protected Areas in south-eastern Brazil, with description of three new species

Sérgio Luiz de Siqueira Bueno https://orcid.org/0000-0002-4434-779X A * , Alexandre Lopes Camargo B , Heros Augusto Santos Lobo C D , Ana Luiza Vera-Silva E , Marcos Tavares F and Fernando Luis Mantelatto https://orcid.org/0000-0002-8497-187X E
+ Author Affiliations
- Author Affiliations

A Department of Zoology, Institute of Biosciences, University of São Paulo (USP), Rua do Matão 101, São Paulo, SP, CEP: 05508-090, Brazil.

B Grupo Bambuí de Pesquisas Espeleológicas, Avenida Nossa Senhora do Carmo 221, s.307/308, Belo Horizonte/MG, CEP:30.310-000, Brazil. Email: bambuiespeleo@gmail.com

C Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil. Email: heroslobo@ufscar.br

D União Paulista de Espeleólogos (UPE), Rua Loefgren, 1291, CEP 04040-031, São Paulo, SP, Brazil.

E Laboratory of Bioecology and Crustacean Systematics (LBSC), Department of Biology, Faculty of Philosophy, Science and Letters, at Ribeirão Preto (FFCLRP), USP, Avenida Bandeirantes 3900, Ribeirão Preto, SP, CEP: 14040-901, Brazil. Email: ana_luiza_vera@hotmail.com; flmantel@usp.br

F Museum of Zoology of the University of São Paulo (MZUSP), Avenida Nazareth 481, 04263-000, São Paulo, Brazil. Email: mdst@usp.br

* Correspondence to: sbueno@ib.usp.br

Handling Editor: Jo Wolfe

Invertebrate Systematics 38, IS24023 https://doi.org/10.1071/IS24023
Submitted: 16 February 2024  Accepted: 21 August 2024  Published: 30 September 2024

© 2024 The Author(s) (or their employer(s)). Published by CSIRO Publishing.

Abstract

Three new cave-dwelling aeglid species from the Alto Ribeira karst region, south-eastern Brazil, are described. Morphological descriptions are based on traits traditionally used in aeglid taxonomy. Molecular phylogeny reconstruction based on the partial fragments of the 16S ribosomal RNA (16S rDNA) and the cytochrome oxidase subunit I (COI) revealed that: (1) dispersal of epigean aeglids toward the Alto Ribeira karst area occurred at two separate events in the evolutionary history of freshwater aeglids; (2) extant cave-dwelling aeglid species form two distinct subclades, each of which originated from a distinct ancestral epigean lineage; and (3) successful adaptation to subterranean habitats, as seen in extant cave-dwelling aeglid species from the Alto Ribeira karst area, developed independently within each subclade, as each one of them comprised an exclusive group of both stygobitic and stygophilic species.

ZooBank: urn:lsid:zoobank.org:pub:3F2D0A63-B86E-421F-9B29-DD605BF7B4E7

Keywords: Aegla, biodiversity, conservation units, dispersal, new species, stygobites, stygophiles, subterranean habitat.

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