Pseudonesimus cedrosianus (J.L. Barnard, 1967) comb. nov. Schisturella robusta cedrosiana J.L. Barnard, 1967: 72 (key), 77, fig 35.― Barnard & Ingram, 1990: 31 (key).― Larsen, 2007: 14 (key). Types. Holotype, male, 6.8 mm, LACM CR 1960 - 078.9 (originally AHF 6028). Type locality. Cedros Trench, off Baja California (27°54'25"N 115°40'00"W), 1720–1748 m depth. Habitat. Unknown. Depth range. 1720–1748 m (J.L. Barnard 1967). Remarks. This species differs from P. robustus (J.L. Barnard, 1961) by the more acute lateral cephalic lobes, the more broadly rounded epimeron 3, and uropod 3 peduncle which is twice as long as wide in this species, but only 1.5 × longer than wide in P. robustus. Distribution. Eastern Pacific Ocean. Cedros Trench (J.L. Barnard 1967).

{"references": ["Barnard, J. L. (1967) Bathyal and abyssal gammaridean Amphipoda of Cedros Trench, Baja California. Bulletin of the United States National Museum, 260, 1 - 205. http: // dx. doi. org / 10.5479 / si. 03629236.260.1", "Barnard, J. L. & Ingram, C. (1990) Lysianassoid Amphipoda (Crustacea) from deep-sea thermal vents. Smithsonian Contributions to Zoology, 499, 1 - 80. http: // dx. doi. org / 10.5479 / si. 00810282.499", "Larsen, K. (2007) Amphipoda (Crustacea: Peracarida) from the hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae. Zootaxa, 1445, 1 - 26.", "Barnard, J. L. (1961) Gammaridean Amphipoda from depths of 400 to 6000 meters. Galathea Report, 5, 23 - 128."]}

Published as part of Kilgallen, N. M. & Lowry, J. K., 2014, The Tryphosa group (Crustacea: Amphipoda: Lysianassoidea: Lysianassidae: Tryphosinae), pp. 501-545 in Zootaxa 3768 (5) on page 512, DOI: 10.11646/zootaxa.3768.5.1, http://zenodo.org/record/4909684