@article {41, title = {Descriptions of a new species of Opisthostoma from Borneo}, journal = {Proceedings of the Malacological Society of London}, volume = {6}, year = {1904}, pages = {105}, chapter = {105}, url = {http://www.biodiversitylibrary.org/item/52315$\#$page/135/mode/1up}, author = {E.A. Smith} }