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Rectal Gland of Freshwater Stingrays, Potamotrygon spp. (Chondrichthyes: Potamotrygonidae)
Thomas B. Thorson, Robert M. Wotton and Todd A. Georgi
Vol. 154, No. 3 (Jun., 1978), pp. 508-516
Published by: The University of Chicago Press
Stable URL: http://www.jstor.org/stable/1541076
Page Count: 9