original descriptionMüller, O. F. (1773-1774). <i>Vermium terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum, et testaceorum, non marinorum, succincta historia</i>. <em>[Book].</em> Vol. 1: 1-136 Infusoria [1773] / Vol1 [part 2] 1-78 Helminthica 1-72 [1774] ; Vol. 2: 1-214 Testacea + index 8 pp. [1774]. Havniæ (Copenhagen) & Lipsiæ (Leipzig): Heineck & Faber., available online athttps://www.biodiversitylibrary.org/item/50344[details]