The term 'Eel Type' refers to two species of eels, the MORAY and the CONGER. The MORAY is a large, predatory eel found in tropical and subtropical oceans around the world. It can grow up to 4 feet in length and has a distinctive pattern of dark spots and stripes. The CONGER is a larger species of eel found in temperate and tropical waters. It can grow up to 10 feet in length and has a long, slender body. Both species are carnivorous and feed on fish, crustaceans, and mollusks.