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Provortex psammophilus
2008
Fig. 282
A. Organization from live observations. Kiel Bay. B. Stylet. Kiel Bay. C. Stylet, apparently from Gotland [Sweden]. D,E. Stylet from micrographs from Arcachon Basin. (A,B,D,E Ax originale 1948,1964; C Karling 1974)