Nadakal , A. M.. "Carotenoids and Chlorophyllic Pigments in the Marine Snail, Cerithidea Californica Haldeman, Intermediate Host for Several Avian Trematodes." Marine Biological Laboratory. JSTOR, n.d. Web. 26 May 2010. <http://www.jstor.org/pss/1538938>.
CHANG, KENNETH. "The New York Times > Science > Yes, It's a Lobster, and Yes, It's Blue." The New York Times - Breaking News, World News & Multimedia. NY Times, 15 Mar. 2005. Web. 24 May 2010. <http://www.nytimes.com/2005/03/15/science/15blue.html>.