Swing, Kelly. “Observations on the Distribution and Density of the Rare and Poorly Known Flower Urchin, Toxopneustes Roseus, (Phylum Echinodermata, Class Echinoidea, Family Toxopneustidae) in Ecuador”. ACI Avances en Ciencias e Ingenierías 4, no. 1 (June 30, 2012). Accessed July 22, 2024. https://revistas.usfq.edu.ec/index.php/avances/article/view/79.