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Rioraja agassizii

Rio Skate


Rioraja agassizii

Müller & Henle, 1841
Raya Lisa
Family: Arhynchobatidae
Order: Rajiformes
Class: Chondrichthyes
Phylum / Division: Chordata
Kingdom: Animalia
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Description


The rio skate (Rioraja agassizii) is a shallow water skate native to the Atlantic coast of South America from Brazil to southern Argentina. It is the only member of the monotypic genus Rioraja.

The species is named in honor of zoologist-geologist Louis Agassiz.

Source: Wikipedia, article Rioraja agassizii. Content adapted from Wikipedia, available under the CC BY-SA 4.0 license. Accessed on 18/07/2026.





Geographic distribution


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Species photographs

Count: 3

Foto
Photography ID: 664157
  Egg
Villa Gesell
Buenos Aires
Argentina
12/04/2025
Marcos Garberoglio
Foto
Photography ID: 663304
  Egg
Mar Chiquita
Buenos Aires
Argentina
06/04/2023
Jorge Iriberri


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Species vocalizations

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Last filmings published




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Species reports



 Detail of places sorted by number of records





Species records

Count: 3



Page 1 of 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
240330504/12/2025ArgentinaBuenos AiresVilla GesellMarcos Garberoglio
225524302/01/2024ArgentinaBuenos AiresMonte HermosoTiziano Luka Pesci Rubilar
240059404/06/2023ArgentinaBuenos AiresPlaya, Mar ChiquitaJorge Iriberri
Page 1 of 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Rio Skate (Rioraja agassizii) – Species account. Accessed from www.ecoregistros.org on 07/11/2026.