Austinixa bragantina Coelho, 2005: a junior synonym of A. aidae (Righi, 1967) (Brachyura: Pinnotheridae) supported by integrative morphological and molecular data

Author(s)

Almeida, Alexandre O. ; Araujo-Silva, Catarina L. ; Lucatelli, Debora ; Bezerra, Luis Ernesto A. ; Balbino, Felipe C. ; Tamburus, Ana F. ; Mantelatto, Fernando L.

• Document type: Journal article
• Source: Zootaxa; v. 5227, n. 2, p. 22-pg., 2023-01-05.

Abstract

Austinixa bragantina Coelho, 2005, described from Ilha Canela, Braganca, state of Para, Brazil, is established as a junior synonym of A. aidae (Righi, 1967) based on morphological (gross morphology and scanning electron microscopy) and molecular (16S rRNA mitochondrial marker) evidence. The phylogenetic tree was obtained through the Maximum Likelihood method aiming to contextualize A. bragantina among related species. We provide a redescription, an updated synonymy, and remarks on the intra-specific morphological variability of A. aidae to clarify some taxonomic inconsistencies previously reported. Austinixa hardyi Heard & Manning, 1997, a species of uncertain taxonomic status, was confirmed genetically to also be a synonym of A. aidae. (AU)

• FAPESP's process: 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics)
• Grantee: Fernando Luis Medina Mantelatto
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 18/13685-5 - Integrative analysis of the Brazilian fauna of decapod crustaceans: taxonomy, phylogenetic systematics, spermiotaxonomy, morphology of post-embryonic development, ecology and conservation
• Grantee: Fernando Luis Medina Mantelatto
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 22/11860-0 - Taxonomic status of the species of Pinnixinae Stevcic, 2005 (Brachyura: Pinnotheridae) from the Brazilian coast: an integrativa analysis with morphology and genetics
• Grantee: Felipe Cesar Balbino Santos
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 21/08075-6 - Training of specialized human resources in the molecular taxonomy field: decapod crustaceans as a training model
• Grantee: Fernando Luis Medina Mantelatto
• Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants