Voyages de la Commission scientifique du Nord, en Scandinavie, en Laponie, au Spitzberg et aux Feröe - no-nb digibok 2009040611001-108

Illustration by carl ludwig petersen obtained from the book "voyages de la commission scientifique du nord, a scandinavia, a laponie, a spitzberg and aux feröe" of cuma brevirostris and leucon emarginatus (now known as eudorella emarginata). Date: before 185?.