Two new species of Liljeborgia Spence Bate, 1863 (Crustacea, Amphipoda, Liljeborgiidae) from the Clarion-Clipperton Zone, Pacific Ocean

Two new species of Liljeborgia are described from the Clarion-Clipperton Zone, central-east Pacific Ocean. Liljeborgia scylla sp. nov . is described from a single immature male specimen collected at 4223 m depth. This species is characterised by a tooth-like protrusion on the second gnathopod, a very narrow basis of pereopods 5–7, and a shallow cleft in the telson. Liljeborgia sibylline sp. nov . was collected at depths ranging from 4107 to 4287 m and is described from six specimens. Despite similarities in morphology to Liljeborgia scylla sp. nov ., Liljeborgia sibylline sp. nov . can be distinguished by characters of the gnathopods, telson, and epimeron 3. Molecular barcode data are also provided for both species, offering additional insights into their genetic distinctiveness.