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Article
Published: 2018-08-29

Cold-water corals off Angola as refuge for a new Aeginella species (Crustacea: Amphipoda: Caprellidae)

Leibniz Institute for Baltic Sea Research Warnemünde, Seestr. 15, D-18119 Rostock, Germany
Senckenberg am Meer, Südstrand 40, D-26382 Wilhelmshaven, Germany
Laboratorio de Biología Marina, Departamento de Zoología, Facultad de Biología, Universidad de Sevilla, Avda Reina Mercedes 6, 41012, Sevilla, Spain
Crustacea Caprellidae new species Aeginella Angola cold-water corals

Abstract

A new species of caprellid amphipod, Aeginella corallina sp. nov., is described from cold-water corals off Angola. This is the first observation of this genus in the South-Atlantic. The taxon is fully described and figured and is compared with the only known species of the genus, A. spinosa, occurring in deep waters of the northern hemisphere. Both species can be clearly differentiated on the basis of the following characters: (1) pereonite 1 is provided with a large dorsal acute projection in A. spinosa, while this projection is lacking in A. corallina; (2) gnathopod 2 propodus has an acute projection distally which is lacking in A. corallina; (3) the palm of the gnathopod 2 propodus in males is densely setose and it is provided with two distal projections in A. corallina while it is scarcely setose and with less developed projections in A. spinosa; (4) distal article of the mandibular palp is provided by a setal formula of 1-x-1, being x=10-12, in A. spinosa, while in A. corallina x=2-3, and the formula 1-x-1 is not so evident and it could be considered as 1-x-0. (Zoobank: urn:lsid:zoobank.org:act:3D7EB67D-88F2-40D8-99C1-7D62F44F7163)

 

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How to Cite

ZETTLER, M. L., FREIWALD, A., & GUERRA-GARCÍA, J. M. (2018). Cold-water corals off Angola as refuge for a new <em>Aeginella</em> species (Crustacea: Amphipoda: Caprellidae). Zootaxa, 4462(4), 535–546. https://doi.org/10.11646/zootaxa.4462.4.6