@article {150, title = {Observations sur les Ascidies composees des cotes de la Manche.}, journal = {Memoires de l{\textquoteright}Academie des Sciences de l{\textquoteright}Institut de France}, volume = {18}, year = {1841}, pages = {21{\textendash}326}, author = {Milne-Edwards} } @article {271, title = {On Pelonaia a new genus of tunicated mollusks: with description of two species}, journal = {New Philosophy Journal of Edenburg}, volume = {31}, year = {1841}, pages = {29-34}, author = {Forbes, E and Goodsir, J.} }