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Issue: Vol. 5686 No. 3: 28 Aug. 2025
Type: Article
Published: 2025-08-28
DOI: 10.11646/zootaxa.5686.3.4
Page range: 393-405
Abstract views: 75
PDF downloaded: 17

Two new species of Orbiniidae (Annelida, Polychaeta) from the Condor Seamount, Azores, NE Atlantic Ocean

Aquatic Research & Consulting; 24 Hitty Tom Road; Duxbury; MA 02332 USA; Department of Invertebrate Zoology; Museum of Comparative Zoology; Harvard University; 26 Oxford Street; Cambridge; MA 02138 USA
Departamento de Biologia & Centro de Estudos do Ambiente e do Mar (CESAM); Universidade de Aveiro; Campus Universiário de Santiago; 3810-193; Aveiro; Portugal
National Research Council; Institute of Marine Sciences; Arsenale; Tesa 104; Castello 2737/F; 30122; Venice; Italy
Annelida Berkeleyia Microrbinia deep-sea

Abstract

Two new species of Orbiniidae (Annelida, Polychaeta) from the Condor Seamount in the NE Atlantic Ocean off the Azores are described. The first, Berkeleyia condoriensis sp. nov., is the seventh species of the genus to be described and the first from the North Atlantic Ocean. The new species is from 1006 m on the southern flank of the Condor Seamount. The second species, Microrbinia hartmanae sp. nov., is only the second species of the genus to be described, both from the North Atlantic Ocean. Like the first, M. linea Hartman, 1965, the new species has a unique dorsal glandular organ on some specimens. These organs are believed to be male copulatory organs and are unique within the family. Microrbinia hartmanae sp. nov. is from 206 m on the summit of the seamount.

 

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How to Cite

Blake, J.A., Ravara, A. & Bongiorni, L. (2025) Two new species of Orbiniidae (Annelida, Polychaeta) from the Condor Seamount, Azores, NE Atlantic Ocean. Zootaxa, 5686 (3), 393–405. https://doi.org/10.11646/zootaxa.5686.3.4