The Genus Sphalloplana is further organized into finer groupings including:
- Species: ZipcodeZoo has pages for 21 species and subspecies in the Genus Sphalloplana: S. alabamensis · S. buchanani · S. californica · S. chandleri (Chandler's Planarian) · S. consimilis (Powell Valley Planarian) · S. culveri (Culver's Planarian) · S. evaginata · S. georgiana · S. hoffmasteri · S. holsingeri (Holsinger's Groundwater Planarian) · S. hubrichti · S. hypogea · S. kansensis (Kansas Planarian) · S. mohri · S. percoeca · S. pricei (Refton Cave Planarian) · S. reddelli · S. sloani · S. subtilis (Bigger's Groundwater Planarian) · S. virginiana (Rockbridge County Cave Planarian) · S. weingartneri (Weingartner's Cave Flatworm)
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