Amazon deep South: Schubarthelphusa, a new genus to accommodate two freshwater crab species from the State of Rondônia, Brazil (Brachyura, Pseudothelphusidae)-Reference-Cited by-同舟云学术

Amazon deep South: Schubarthelphusa, a new genus to accommodate two freshwater crab species from the State of Rondônia, Brazil (Brachyura, Pseudothelphusidae)

Published:2024-08-15 Issue:5-9 Volume:97 Page:677-685
ISSN:0011-216X
Container-title:Crustaceana
language:
Short-container-title:Crustac.

Author:

Magalhães Célio¹²^ORCID,Pinheiro Allysson P.³^ORCID,Mantelatto Fernando L.¹^ORCID

Affiliation:

1. Laboratory of Bioecology and Crustacean Systematics (LBSC), Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto (FFCLRP), University of São Paulo (USP), São Paulo, Brazil

2. Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil

3. Laboratory of Semiarid Crustaceans, Regional University of Cariri, Crato, Ceará, Brazil

Abstract

Abstract A new genus of pseudothelphusid crab is proposed to accommodate two species from the state of Rondônia in the southern Amazon region of Brazil. The new taxon was retrieved as a separate lineage from the genus Fredius Pretzmann, 1967, based on an integrative approach using molecular phylogenetic analysis and morphological characters of the male first gonopod, as well as taking into account its geographic distribution. In terms of gonopod morphology, the new genus resembles Fredius but it is characterized by an enlarged and distinctly inflated proximal portion of the cephalic lobe, a well-developed patch of strong, corneous spines along the mesial and abdominal surfaces of the cephalic lobe, and a mesial lobe that is extremely developed on a long, narrow, sinuous or convoluted projection. The new genus has the southernmost distribution of the Pseudothelphusidae within the Amazon Basin.

Funder

Fundação de Amparo à Pesquisa do Estado de São Paulo

Fundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Publisher

Brill

Link

https://brill.com/downloadpdf/journals/cr/97/5-9/article-p677_20.xml

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