original description(ofCynthia paessleri Michaelsen, 1900)Michaelsen, W. (1900). Die holosomen ascidien des magalhaenisch-sudgeorgischen Gebietes. <em>Zologica.</em> 12(31): 1-148.[details]
original description(ofParacynthia distincta Ärnbäck, 1938)Arnback, C. L. (1938). Ascidiacea. <em>In: Furher zoological results of the Swedish Antarctic expedition 1901-1903, under the direction of Dr. Otto Nordenskjold. Stockholm.</em> 3(4): 1-54.[details]