@article {pdf,
	title = {Fors{\o}g til en ny Classification of Planarierne (Planariea Dug{\'e}s) grundet paa mikroskopish-anatomiske Unders{\o}gelser},
	journal = {Kroyer{\textquoteright}s Naturhistorisk Tidsskrift (I)},
	volume = {4},
	number = {8},
	year = {1843},
	note = {2936},
	pages = {519-581},
	type = {article},
	abstract = {Describes:
Macrostomum hystrix n. sp.
Macrostomum appendiculatum n. sp. (was Planaria appendiculata)},
	keywords = {Macrostomum},
	author = {A S {\O}rsted}
}
