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Petrushevskaya 1967


Fig. 22
Spongotrochus glacialis Popofsky:
I - Specimen from sediment of station 363; II - part
of its shell at high magnification; III very large specimen from sediment of station 363; IV - comparatively small specimen, but already with pylome, from sediment of station 16; V-VII - juvenile specimens from 0 - 500 m haul at station 280.