topminnow
top min now |ˈtäpˌminō ˌtɑpˈmɪnoʊ | ▶noun a small surface-swimming fish related to the killifishes, found in fresh, brackish, and salt water throughout North America. [Genus Fundulus, family Fundulidae: many species, including the banded topminnow (F. cingulatus ) and the eastern starhead topminnow (F. escambiae ).]
top |minnow ▶noun an American killifish, often seen at the water surface. ●Fundulus and other genera in the families Cyprinodontidae (or Fundulidae ) (many species ), and Poeciliidae (one or two species ).