@article {5310, title = {The phyletic status of the genus Planaria (Platyhelminthes, Tubellaria, Tricladida).}, journal = {Bijd Dierkunde}, volume = {48}, year = {1978}, month = {1978}, pages = {29 - 34}, keywords = {Amphiscolops langerhansi, Convoluta langerhansi, Heterochaerus langerhansi, Polychoerus langerhansi}, author = {Ball,IR and Gourbault,N} }