See text Spathula is a genus of dugesiid triclad.
Until 1977, Spathula was ranked as a subgenus of Dugesia.
[1] The name of the genus derives from the Latin spathula, meaning "broad, flat piece".
[2] Along with this, the genus was originally defined as planarians with "one atrium (undivided) around the penis, into which opens the bursa stalk" and numerous testes.
[3] The following species are recognised in the genus Spathula[4]