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Issue: Vol. 5569 No. 2: 14 Jan. 2025
Type: Article
Published: 2025-01-14
DOI: 10.11646/zootaxa.5569.2.6
Page range: 328-344
Abstract views: 175
PDF downloaded: 10

Deep-sea anemones (Cnidaria, Actiniaria) from off the northeastern coast of Brazil: new records and description of Stephanauge prima sp. nov.

Universidade Federal Rural de Pernambuco; Grupo de Pesquisa em Antozoários; Departamento de Biologia; Rua Dom Manuel de Medeiros; s/n - 52171-900; Dois Irmãos; Recife - PE; Brazil.
Universidade de São Paulo; Laboratório de Invertebrados Marinhos; Museu de Zoologia da Universidade de São Paulo; Avenida Nazaré; 481 - 04263-000; Ipiranga; São Paulo - SP; Brazil.
Universidade Federal Rural de Pernambuco; Grupo de Pesquisa em Antozoários; Departamento de Biologia; Rua Dom Manuel de Medeiros; s/n - 52171-900; Dois Irmãos; Recife - PE; Brazil.
Coelenterata Amphianthidae New Species Taxonomy Hexacorallia South Atlantic Deep-sea Research

Abstract

Deep-sea anemones (order Actiniaria) are a diverse group of cnidarians found in basically all marine habitats, from soft sediments to hydrothermal vents and cold seeps. From the waters of Brazil, in the Southern Atlantic Ocean, the deep actinian fauna has been described to encompass 14 sea anemones species, belonging to three families: Hormathiidae, Amphianthidae and Actinoscyphiidae. Here we analyze material trawled from the Potiguar Basin, off the northeast coast of Brazil. We provide new occurrence records for Chondrophellia coronata (Verrill, 1883), Actinoscyphia saginata (Verrill, 1882), Amphianthus bathybium Hertwig, 1882, and Amphianthus michaelsarsi Carlgren, 1934. We also describe a new Amphianthidae species, Stephanauge prima sp. nov. This increases the total number of deep actinians found in Brazil to 17 and provides context for discussing the representativeness of these families and the potential richness of Actiniaria in deep Brazilian waters.

 

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