Answer: mummichogs

AnswerCrossword Clue
mummichogsMUMMICHOG, (Native American) any one of several species of small American cyprinodont fishes, aka killifish
mummichogsA small marine killifish that lives along the sheltered shores and estuaries of eastern North America. It is widely kept in aquariums and is also used as bait and for biological research