@article {pdf, title = {The relationship of character variability and morphological complexity in copulatory structures of Turbellaria-Macrostomida and -Haplopharyngida}, journal = {Mikrofauna Meeresboden}, volume = {61}, year = {1977}, note = {1635}, pages = {197-216}, type = {article}, abstract = {Describes: Macrostomum hystricinum marinum Austromacrostomum sp. Paramyozonaria bermudensis n.sp. Mentions: Paromalostomum dubium Paromalostomum atratum Paromalostomum sp. Cylindromacrostomum mediterraneum Paramyozonaria riegeri Haplopharynx quadristimulus}, keywords = {Macrostomum}, author = {Rieger, Reinhard M} }