A new species of spiny Rineloricaria (Siluriformes: Loricariidae) from the Rio Paraiba do Sul basin and costal rivers from Rio de Janeiro State

Author(s)

Silva, Guilherme Jos Da Costa ; Da Costa e Silva, Gabriel De Souza ; Oliveira, Claudio

• Document type: Journal article
• Source: Zootaxa; v. 5175, n. 2, p. 8-pg., 2022-08-16.

Abstract

Although the genus Rineloricaria is widely distributed in the Neotropical region, its species usually occupy single drainages with high habitat fidelity. Rineloricaria species show evident sexual dimorphism with hypertrophied odontodes in sexually mature males. Here, we describe a new species of Rineloricaria present in the Rio Paraiba do Sul basin and coastal rivers in Rio de Janeiro State. The new species has extreme sexual dimorphism making possible to differentiate it from all congeners. The new species can also be separated from other sympatric species by morphometric characteristics and dermal plates pattern. (AU)

• FAPESP's process: 16/09204-6 - Biodiversity and Biogeography in marine-estuarine fishes (Teleostei) from Brazil
• Grantee: Claudio de Oliveira
• Support Opportunities: Regular Research Grants
• FAPESP's process: 21/12979-8 - Phylogenetic relationships among genera and families of Siluriformes using ultraconserved elements
• Grantee: Gabriel de Souza da Costa e Silva
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/20610-1 - Study of the biogeography of the Brazilian coast using data population genetic data of marine catfish of the genera Cathorops and Genidens
• Grantee: Claudio de Oliveira
• Support Opportunities: Regular Research Grants
• FAPESP's process: 20/13433-6 - Phylogeny and molecular identification of fishes of the superorder Ostariophysi (Chordata: Actinopterygii) using genomic approaches
• Grantee: Claudio de Oliveira
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 14/26508-3 - Phylogeny of the hyperdiverse order Characiformes (Teleostei: Ostariophysi) using ultraconserved elements
• Grantee: Claudio de Oliveira
• Support Opportunities: Research Projects - Thematic Grants