@article {658,
	title = {Uber verschiedene Nacktschnecken.},
	journal = {SB naturf. Ges. Leipzig},
	volume = {22/23},
	year = {1897},
	pages = {140-154},
	author = {Simroth, H}
}
@article {659,
	title = {East African slugs of the family Urocyclidae},
	journal = {Journal of the East Africa Natural History Society},
	volume = {23},
	year = {1960},
	pages = {200-209},
	author = {Verdcourt, B}
}
