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Home / Bulletin of Marine Science, Volume 98, Number 3

A newly discovered Helicocranchia species (Cephalopoda: Cranchiidae: Taoniinae) in the northern Gulf of Mexico

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Only two species of Helicocranchia — Helicocranchia pfefferi Massy, 1907 and Helicocranchia papillata Nesis, 1987—are currently accepted as valid. The genus is found globally in tropical and subtropical regions at depths to >1000 m ( Voss 1980 ). We collected Helicocranchia specimens in the northern Gulf of Mexico during the DEEPEND project (Deep Pelagic Nekton Dynamics of the Gulf of Mexico; sampling 2015–2018) and from the western North Atlantic Ocean during two different research cruises. Physical examination of specimens found differences from recognized species in external pigmentation and in the morphology of the gladius rostrum. Molecular analysis of the COI gene in the specimens also revealed species-level differences. This study reviews current taxonomy and describes a new Helicocranchia species.

Document Type: Research Article

Affiliations: 1: Integrative Biology Department, University of South Florida St. Petersburg, St. Petersburg, Florida;, Email: [email protected] 2: College of Marine Science, University of South Florida, St. Petersburg, Florida 3: Center for Life in Extreme Environments, Portland State University, Portland, Oregon 4: Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Penglais, Aberystwyth, Ceredigion, SY23 3DA, United Kingdom 5: Department of Invertebrate Zoology, Smithsonian National Museum of Natural History, Washington, DC 6: NMFS National Systematics Laboratory, National Museum of Natural History, Washington, DC

Publication date: 01 July 2022

This article was made available online on 19 July 2022 as a Fast Track article with title: "A newly discovered Helicocranchia species (Cephalopoda: Cranchiidae: Taoniinae) in the northern Gulf of Mexico".

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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