This 2004 CBS news article gives a brief summary of the initial discovery of a Hawaiian bobtail squid with reflective plates that form a built-in light, which is thought to confuse predators. The article also discusses possible mechanisms for the light production.
Subject: Biology:Ecology:Symbiotic Relations, Habitats:Marine Resource Type: Scientific Resources:Overview/Reference Work Grade Level: Intermediate (3-5), Middle (6-8), High School (9-12), General Public Ocean Environments: Shallow Sea Floor/Continental Shelf, Surface Waters, Deep Waters Theme: Teach the Earth:Course Topics:Ecology