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Issue: Vol. 5244 No. 5: 22 Feb. 2023
Type: Article
Published: 2023-02-22
DOI: 10.11646/zootaxa.5244.5.3
Page range: 455-473
Abstract views: 404
PDF downloaded: 46

Nudibranchia (Mollusca: Gastropoda) from San Matías Gulf, Northern Argentine Patagonia

Escuela Superior de Ciencias Marinas (ESCiMar), San Martín 247, San Antonio Oeste, Río Negro, Argentina.
Escuela Superior de Ciencias Marinas (ESCiMar), San Martín 247, San Antonio Oeste, Río Negro, Argentina. Centro de Investigación y Transferencia Tecnológica en Recursos Marinos Almirante Storni (CIMAS), Güemes 1030, San Antonio Oeste, Río Negro, Argentina.
Nudibranchia new records biodiversity South America taxonomy Mollusca

Abstract

The San Matías gulf is a marine biodiversity hotspot located in the Argentinean Patagonia. Although there are several studies on gastropod mollusks from Argentina, nudibranchs remain less studied. In this faunistic assessment 15 species of nudibranchs were found in San Matías gulf, including two new family records for Argentina: Coryphellidae and Dotidae. Although Magellanic nudibranchs are clearly predominant in this area, warm water species such as Doto uva and Coryphella cf. verta are recorded and the known geographic range of five species is extended. In addition, Rostanga pulchra and Diaulula hispida extend their range to the north of the Argentine Patagonia.

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