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Rieger, R. M. (1974). A new group of Turbellaria-Typhloplanoida with a proboscis and its relationship to Kalyptorhynchia. In: N.W. Riser and M.P. Morse (eds.), The Biology of the Turbellaria. McGraw-Hill, NY., pp 23-62
Rieger, R. M. (1974). A new group of Turbellaria-Typhloplanoida with a proboscis and its relationship to Kalyptorhynchia. In: N.W. Riser and M.P. Morse (eds.), The Biology of the Turbellaria. McGraw-Hill, NY., pp 23-62
