The term 'long fish' refers to a variety of fish species that are characterized by their elongated body shape. These include the GAR (3 letters), EEL (3 letters), Eels (4 letters), and Blenny (6 letters). The GAR is a primitive fish with a long, slender body and a long snout. The EEL is a snake-like fish that can grow up to 4 feet in length. Eels are found in both fresh and saltwater habitats. The Eels are a family of fish that includes the Moray EEL, which can grow up to 8 feet in length. The Blenny is a small, bottom-dwelling fish that has an elongated body and a long, thin tail.