Description of a new species of the genus Eperopeus Mills, 1967 (Crustacea, Amphipoda, Pardaliscidae) from the Clarion-Clipperton Zone, Central Pacific Ocean Author Horton, Tammy 0000-0003-4250-1068 National Oceanography Centre, Southampton, SO 14 3 ZH, UK Author Valls Domedel, Georgina https://orcid.org/0009-0005-8932-6641 National Oceanography Centre, Southampton, SO 14 3 ZH, UK Author Stewart, Eva C. D. 0000-0001-8383-5705 School of Ocean and Earth Sciences, University of Southampton, Southampton, SO 14 3 ZH, UK & Life Sciences Department, Natural History Museum, London, Cromwell Road, South Kensington, SW 7 5 BD, UK Author Hendrycks, Ed A. 0000-0001-6199-7121 Canadian Museum of Nature, Research Associate, Research and Collections, P. O. Box 3443, Station D, Ottawa, K 1 P 6 P 4, Canada text ZooKeys 2026 2026-03-24 1274 201 213 journal article 314632 10.3897/zookeys.1274.139483 480f5174-cdac-40b5-a50c-0290ced77dfb 9BFE626F-5A23-4F20-B86E-77965332CF09

Table 2. Differences in morphological character state between Eperopeus abyssicola and E. vermiculatus sp. nov.

	E. abyssicola	E. vermiculatus sp. nov.
Mandibular palp	Article 1 short, 0.5 × length of article 2	Article 1 elongate, 0.9 × length of article 2
Maxilla 1	Palp not expanded (erroneously shown as three-articulate)	Palp widened, two-articulate
Gnathopod 2 carpus	Broad, very similar to gnathopod 1	Narrower than that of gnathopod 1
Gnathopod dactyls	With strong teeth on inner margin	Teeth absent
Pereopods 3, 4	Dactyls equal to or longer than propodus	Dactyls shorter than (0.8–0.9 ×) propodus
Pereopods 5, 6	Dactyls very long, 2.2–2.3 × propodus	Dactyls 1.2 × propodus
Uropod 1	Rami length 0.6 × peduncle	Rami length 0.8 × peduncle
Telson	Length 0.75 × width	Length 1.1 × width