Description: Español: Castalia ambigua Lamarck, 1819. Date: 2013. Source: A. Formica Corsi. 1899: Moluscos de la República Oriental del Uruguay. anales del Museo Nacional de Montevidaeo. Author: A. Formica Corsi. 1899.
Description: English: Alathyria profuga shells by the Goulburn River; Goulburn River National Park, NSW, Australia. The larger shell about 65 mm long. Date: 3 April 2010. Source: Own work. Author: Poyt448 Peter Woodard.