Synallactes mcdanieli sp. nov., a new species of sea cucumber from British Columbia, Canada and the Gulf of Alaska, USA (Holothuroidea, Synallactida)

The family Synallactidae comprises mostly deep-sea forms and is the least-studied large taxon amongst deep-sea cucumbers. They are part of the abyssal megafauna and play an important role in modifying the sediment landscape and structuring the communities that live within it. The family embraces the...

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Bibliographic Details
Published in:Biodiversity Data Journal
Main Authors: Solís Marín,Francisco Alonso, Caballero Ochoa,Andrea Alejandra, Conejeros-Vargas,Carlos Andrés
Format: Other/Unknown Material
Language:English
Published: Pensoft Publishers 2024
Subjects:
Synallactidae
taxonomy
Northeast Pacific
Antarctic
Gulf of Alaska
Canada
Pacific
Indian
British Columbia
Antarc*
Kodiak
Alaska
Online Access:https://doi.org/10.3897/BDJ.12.e124603
https://bdj.pensoft.net/article/124603/
https://bdj.pensoft.net/article/124603/download/pdf/
Description
Summary:The family Synallactidae comprises mostly deep-sea forms and is the least-studied large taxon amongst deep-sea cucumbers. They are part of the abyssal megafauna and play an important role in modifying the sediment landscape and structuring the communities that live within it. The family embraces the genus Synallactes, which contains approximately twenty-five species from the Pacific, Atlantic (six species), Indian (seven species) and Antarctic Oceans (one species).Synallactes mcdanieli sp. nov. is described from the Northeast Pacific, Knight Inlet, British Columbia, Canada to Kodiak Island, Gulf of Alaska, USA, at depths from 21 to 438 m. This new species is unique amongst the species of the genus Synallactes because of the number and arrangement of dorsal papillae, number of Polian vesicles, together with the entire ossicle arrangement. In addition, this species has the shallowest bathymetric distribution ever recorded for this genus.

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