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smithsonian librariesperiodscienceplantsbonediagramshellinsectsmémoires de l'académie impériale des sciences de st.-pétersbourg. 7e série. ser.7:t.33 (1885-1886)mémoires de l'académie impériale des sciences de st.-pétersbourg. 7e série. ser.7:t.25 (1878)
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