@article {131,
	title = {Observations on the taxonomy and range of Hesperarion Simroth, 1891 and the evidence for genital polymorphism in Ariolimax M{\"o}rch, 1860 (Gastropoda: Pulmonata: Arionidae: Ariolimacinae)},
	journal = {The Veliger},
	volume = {47},
	year = {2004},
	pages = {38-46},
	author = {Roth, B}
}
