McDermott, John J. (1976). "Predation of the Razor Clam Ensis directus by the Nemertean Worm Cerebratulus lacteus". Chesapeake Science. 17 (4): 299–301. doi:10.2307/1350520. JSTOR1350520.
McDermott, John J. (1976). "Predation of the Razor Clam Ensis directus by the Nemertean Worm Cerebratulus lacteus". Chesapeake Science. 17 (4): 299–301. doi:10.2307/1350520. JSTOR1350520.