Siegfried Jost Casper (born 1929) is a German biologist whose primary research is in limnology and the plant genus Pinguicula (the butterworts).
Casper the Friendly Ghost | Casper, Wyoming | Siegfried Line | Siegfried & Roy | Siegfried | Casper | Siegfried (opera) | Casper Van Dien | Siegfried Wagner | Billy Casper | Siegfried Matthus | Siegfried Lenz | Casper's Scare School | Siegfried Palm | Siegfried II of Westerburg | David Jost | Siegfried von Feuchtwangen | Siegfried Kasche | Siegfried, Count of Merseburg | Siegfried Bernfeld | ''Siegfried'' | Jost Bürgi | Jost Amman | Chris Siegfried | Casper's Halloween Special | Casper College | Casper Christensen | Bernhard Siegfried Albinus | Wolf pack Siegfried | Title page of a biography of '''Isaak Markus Jost''' by Heinrich Zirndorf |