Shallow-Water Marine Benthic Macroinvertebrates of South Carolina. Species Identification, Community Composition, and Symbiotic Associations.  1985.  Fox, R.S. and E.E. Ruppert.  Belle W. Baruch Library in Marine Science no. 14.  University of South Carolina Press, Columbia, SC.   Available online and as a printable pdf through the University Libraries Digital Collections.