First record of the genus Harpinia Boeck, 1876 (Amphipoda: Phoxocephalidae: Harpiniinae) from the southern hemisphere, with description of three new species

ABSTRACT

Three new species of Harpinia are described from north-eastern Brazil, documenting the first record of the genus from the southern hemisphere. The material examined was collected using a Mini Box Corer within the project ‘Avaliação da Biota Bentônica e Planctônica da Bacia Potiguar e Ceará’ in Potiguar Basin, Rio Grande do Norte state, from depths ranging from 283–998 m. Harpinia bidens sp. nov. is characterized by the following: head with dorsal keel; antenna 2 peduncle article 1 weakly ensiform; gnathopod 2 palm defined by a large excavation producing a spine; epimeral plate 1 posteroventral corner as a short blunt lobe; and epimeral plate 3 with an oblique facial row of setae, posteroventral corner as a large spine. Harpinia kingae sp. nov. can be diagnosed by the following: antenna 2 peduncle article 1 ensiform; gnathopod 1 palm defined by a u-shaped excavation; coxa 7 posterior margin crenulate; epimeral plate 3 posteroventral corner as a spine; and uropod 2 outer ramus with subapical nail. Finally, H. longidactyla sp. nov. has the following diagnostic characters: head with lower lateral blunt projection; antenna 2 article 1 not ensiform; gnathopods 1–2 palm defined by a sinuous excavation; pereopod 6 dactylus longer than propodus; and epimeral plate 3 posteroventrally rounded. Also, a discussion about the genus and an identification key to world species of Harpinia are provided.

KEYWORDS:

• Amphilochidea
• amphilochidea
• taxonomy
• north-eastern Brazil
• Potiguar basin

Publication LSID:

• urn:lsid:zoobank.org:pub:68CA6B85-3065-435E-873A-C035E8BDFC2B

Acknowledgements

We would like to thank the Petróleo Brasileiro S/A (Petrobras) for providing the examined material.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Ethical approval

No animal testing was performed during this study.

Sampling and field studies

All necessary permits for sampling and observational field studies have been obtained from the competent authorities by the authors.

Data availability

Data sharing not applicable to this article as no datasets were generated or analysed during the current study.

Author contribution statement

LFA identified the species, created the illustrations, and wrote the first draft of the manuscript. ARS and JFS provided a revision and improvements to the text. All authors read, commented on, and approved the final manuscript.

Correction Statement

This article has been corrected with minor changes. These changes do not impact the academic content of the article.

Additional information

Funding

LFA was supported by Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco (FACEPE), process number BFP-0106-1.08/21. ARS is supported by the Programa de Incentivo à Produção Científica, Técnica e Artística (PROCIÊNCIA) and Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), grant number E-26/202.768/2019.