Provanna aff. glabra Okutani, Tsuchida and Fujikura, 1992

Provanna aff. glabra Okutani, Tsuchida and Fujikura, 1992

At 16301680 meters, Okinawa Trough (6.3 - 9.4 mm.). Image copyright 2016 by Simon Aiken and used with permission.

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