Lepidepecreoides nubifer J.L. Barnard, 1971

Lowry, J. K. & Stoddart, H. E., 2002, The Lysianassoid Amphipod Genera Lepidepecreoides and Lepidepecreum in Southern Waters (Crustacea: Lysianassidae: Tryphosinae), Records of the Australian Museum 54 (3), pp. 335-364 : 343

Lepidepecreoides nubifer J.L. Barnard

Lepidepecreoides nubifer J.L. Barnard, 1971: 41 , figs. 26, 27.– Austin, 1985: 600.–Barnard & Karaman, 1991: 496.

not Lepidepecreoides nubifer .– Griffiths, 1977: 98, fig. 4. (= L. talboti n.sp.).

Type locality. Off mouth of Columbia River, Oregon, USA, eastern North Pacific Ocean, 44°38.3'N 126°01.0'W, 2860m depth .

Description. Head with lateral cephalic lobe subtriangular, apically subacute; eyes apparently absent. Antenna 1 peduncular articles 1 and 2 without anterodistal lobe; accessory flagellum 2-articulate, terminal article small, offset; flagellum with strong 2-field callynophore; calceoli absent. Antenna 2 flagellum short, calceoli absent. Epistome/upper lip with epistome less produced than upper lip, straight; upper lip produced, rounded apically. Mandible molar columnar with oval, fully triturating surface; palp attached distally, article 3 with proximal A3-seta. Maxilla 1 outer plate with setal-tooth 7 [symmetry not known], cuspidate distally along inner margin; palp distal margin with apical robust setae. Maxilliped outer plate with 1, long, slender apical robust setae.

Gnathopod 1 subchelate; coxa large, about as long as coxa 2, subrectangular with straight anterior margin; basis moderately setose along anterior margin; ischium short; carpus long (2.5 × breadth), longer than propodus, without posterior lobe; propodus small, margins subparallel, palm acute, entire, convex. Pereonite 2 dorsally smooth. Gnathopod 2 palm slightly obtuse. Pereonite 3 dorsally smooth. Pereonite 4 dorsally smooth. Pereopod 4 coxa with a weak posteroventral lobe (posterior margin concave). Pereonite 5 with mid-dorsal carina (slightly developed). Pereopod 5 coxa without distinct lateral ridge; basis about as long as broad, posterior margin with mid-central spine; with well-developed wedge-shaped posteroventral lobe. Pereonite 6 with mid-dorsal carina (slightly developed). Pereonite 7 with mid-dorsal carina (slightly developed). Pereopod 7 basis posterodistally produced, not reaching merus, posterodistally excavate.

Pleonite 1 with mid-dorsal carina. Pleonite 2 with middorsal carina. Pleonite 3 with mid-dorsal carina, not dorsodistally produced, posterodorsal margin produced. Epimeron 3 posterior margin smooth, posteroventral corner broadly rounded. Urosomite 1 with a narrow vertically produced recurved acute spine. Uropod 3 outer ramus article 2 short, with plumose setae on each ramus. Telson deeply cleft, with dorsal robust setae, with 1–2 apical robust setae on each lobe.

Distribution. Oregon, USA, eastern North Pacific Ocean; 2860 m depth.