Marine Planarians of the World: In: A. E. Verrill and S. I. Smith, Report upon the Invertebrate Animals of Vineyard Sound and adjacent waters. Government Printing Office, Washington.

Literature

Authors(s)	Verrill, A. E.
Year	1873
Title	In: A. E. Verrill and S. I. Smith, Report upon the Invertebrate Animals of Vineyard Sound and adjacent waters. Government Printing Office, Washington.