Published January 13, 2017
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The Seven-arm Octopus, Haliphron atlanticus Streenstrup, 1861 (Cephalopoda, Alloposidae), in the Fernando de Noronha archipelago, Brazil
- 1. Federal University of Rio Grande do Norte, Brazil
- 2. Laboratório do Oceano, Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Brazil
- 3. Museu do Tubarão, Arquipélago Fernando de Noronha, Brazil
- 4. Laboratório de Bentos e Cefalópodes, Departamento de Oceanografia e Limnologia, Universidade Federal do Rio Grande do Norte, Brazil
- 5. Laboratório de Ictiologia Sistemática e Evolutiva, Departamento de Botânica e Zoologia Universidade Federal do Rio Grande do Norte, Brazil
Description
The rare deep-sea octopus, Haliphron atlanticus is the only known species recognized within the genus. A fragment of H. atlanticus was found in the Fernando de Noronha archipelago, Brazil (South Atlantic). Both phylogenetic reconstruction and pairwise genetic divergence show that the specimen recorded in South Atlantic is closely related to individuals from North Pacific. However, there is a greater divergence among these specimens and a giant octopus from North Atlantic. This evidence suggests that Haliphron is not monospecific, with at least two species, both represented in the Atlantic Ocean.
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