Giant River Shrimps of the Genus Macrobrachium (Decapoda: Palaemonidae) in North and South Carolina

Of the six species of giant river shrimps of the genus Macrobrachium that occur in the United States, three have been found in North and South Carolina – M. acanthurus, M. ohione and M. olfersii. Very few specific localities, especially those verified by voucher specimens, have previously been reported for the Carolinas. This note reports >153 specimens of these species from 42 localities in the two states.