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Petrushevskaya 1971


Figure 72

Recent Lophophaeninae.
I-III) Trisulcus testudus sp. n., plankton: I) Indian Ocean, “Obj”, 69th sample of suspension; II, III) Pacific Ocean, “Vityaz” station 5117, 50 m (development of the thorax varies); IV-VII) T. triacanthus atyp., plankton:IV-VI, Pacific Ocean, “Vityaz” (IV, station 5069, 200 m; V, station 5117, 25 m; VI, station 5145, 1000 m, dead); VII) Indian Ocean, “Obj”, 64th sample of suspension; VIII-XIII) T. triacanthus typ., plankton: VIII) Pacific Ocean, “Vityaz” station 5117, 50 m; IX) same location, 25 m; X) Indian Ocean, “Obj”, 69th sample of suspension; XI) 61st sample of suspension; XII) Pacific Ocean, “Vityaz” station 5117, 25 m; XIII) same locality, 50 m; XIV-XVII) Peromelissa phalacra, magnification twice as small as in I-XIII, plankton: XIV) Indian Ocean, “Vityaz” station 5255; XV) station 5235; XVI, XVII) RIS station 60.