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Keywords from Image Description:
Trochus pauperculus Lischke Type figs. Information of the species is biodiversitylibrary org here Malakozoologische Bltter Lischke Ein Beitrag zur Kentniss der Mollusken Japan's mit besonderer Rcksicht auf die geographische Verbreitung derselben Dritter Thail Taf IV Verlag von Theodor Fischer Cassel from biodiversitylibrary