On a new species of Amphilochus from deep and cold Atlantic waters, with a note on the genus Amphilochopsis (Amphipoda, Gammaridea, Amphilochidae)

Anne Helene S Tandberg; Wim Vader

doi:10.3897/zookeys.731.19899

On a new species of Amphilochus from deep and cold Atlantic waters, with a note on the genus Amphilochopsis (Amphipoda, Gammaridea, Amphilochidae)

Zookeys. 2018 Jan 23:(731):103-134. doi: 10.3897/zookeys.731.19899. eCollection 2018.

Authors

Anne Helene S Tandberg¹, Wim Vader²

Affiliations

¹ University Museum of Bergen, Natural History Department, PO Box 7800, NO 5020 Bergen, Norway.
² Tromsø University Museum, NO-9037 Tromsø, Norway.

Abstract

Amphilochus manudens and Amphilochopsis hamatus are redescribed based on specimens from the BioIce, Mareano, and IceAGE programmes. The new species Amphilochus anoculussp. n. is described based on material from the IceAGE programme and the preceding BioIce programme; it is separated from the closely related Amphilochus manudens by the absence of eyes, a symmetrically bilobed labrum, four setae on the maxilla 2 outer plate, a rounded corner of epimeral plate 3, and a robust seta at the tip of the telson. There are also clear differences in depth and temperature ranges. Amphilochopsis hamatus is shown to be closely related to Amphilochus manudens and A. anoculus and transferred to Amphilochus s. str.

Keywords: Amphilochus; Amphipoda; BioIce; IceAGE; Mareano; North Atlantic; new species; taxonomy.

Grants and funding

Norwegian Biodiversity Initiative