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Marcus, Ev.; Marcus, Er. (1960). Some opisthobranchs from the northwestern Gulf of Mexico. Publications of the Institute of Marine Science, University Texas. 7:251-261, 3 pls.
Marcus, Ev.; Marcus, Er. (1960). Some opisthobranchs from the northwestern Gulf of Mexico. Publications of the Institute of Marine Science, University Texas. 7:251-261, 3 pls.