(Figs. 27, 28, 29.K, L, O, 30.E, F, K, L, S)
Material. 5 live specimens. 1 A F (SNB 0259 60), 1 A M (SNB 0262), 1 (A 1) (SNB 0261) ANDEEP III, # 16 – 10 –S, ZMH K 41298; 1 (A 1) (SNB 0258), ANDEEP III, # 16 – 10 –E, ZMH K 41299; 1 A F (SNB 0265), ANDEEP III, # 16 – 11, ZMH K 41300; Distribution. Cape Basin, Southeastern Atlantic, 4686 to 4727m.
Measurements (Fig. 28). A LV, L 1.81–1.92mm, H 0.93–1.04mm; (A 1) L 1.42–1.48mm, H 0.78– 0.84mm.
Description. The characters not described herein are similar to the ones described in the section of B. malyutinae sp. nov. LV subtriangular, high in relation to length; posterodorsal margin of LV straight. RV with upswung posterior. Posterior conspicuously protruding in both valves.
Hemipenis with coiled vas deferens; strongly sclerotized subrectangular, arched, short proximal lobe; and subconical thick distal lobe armed distally with numerous chitinous spines. Genital lobe subtriangular. Chaetotaxy AI 1 (0/0), 2 (0/0: 1 i), 3 (. 2 /0), 4 (. 1 /. 1), 5 (. 23 /. 2), 6 (. 3 /. 2), 7 (0/0: 5). AII 1 (0/0: 2 i), 2 (0/0: 1 i), Exopodite(0/0: 3), 3 (0/. 34.1 c, 1), 4 (0/. 1 r. 1 c, 1), 5 (. 1.1 c, 1 /1,1r, 1 c), 6 (0/ 1 c, 23: 1 c). Md Base (. 1 /0: 5t, 45), Exopodite(0/0: 3 p), Palp 1 (0/ 1: 1 i), 2 (. 1.34 / 02: 0 1 i), 3 (. 5./ 1: 2), 4 (. 3 /0: 23 c, 13). MxI Vibratory plate(8 9 a, 2526 p), Palp(.1.1.1/. 2.: 1 pc). ApV 1 (. 1.23.2 3 /0), Vibratory plate(914 a, 46 p), 2 (0/. 23), [+or Not fused] 3 (0/ 1), 4 (0/. 1), 5 (0/0:.1,1c, 1). ApVI and ApVII 1 (.1.1.2/0), Exopodite(2), 2 (0/. 2), 3 (0/. 1), 4 (0/. 1), 5 (0/ 0:1,1c, 1). Fu (. 1 r./. 3.2 3.1 r.1.1.1.1).
Remarks. Maddocks (1969) described B. mozambiquensis from the Mozambique Channel, the Southwestern Pacific and the Gulf of Mexico (1140 to 3850m). The specimens studied herein: (1) are more smoothly rounded larger than the ones described by Maddocks, which present angulated lateral outline; (2) present a more acute posterior margin.