Aulacodiscus margaritaceus Ralfs
Drawing from Atlas der Diatomaceenkunde (A. Schmidt) Plate 37: Fig. 4 ___Note: as Aulacodiscus margaritaceus Ralfs and varr. in Schmidt pl. 37: figs 1-7
Date: 07 November 2011
Copyright: © (1876) Atlas der Diatomaceenkunde (A. Schmidt)
Image Reference: 18854
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