- Cyprinodontidae, family Cyprinodontidae - large family of small soft-finned fishes; killifishes; flagfishes; swordtails; guppies
--1 is a kind of fish family
--1 is a member of Cypriniformes, order Cypriniformes
--1 has members:cyprinodont; Fundulus, genus Fundulus; genus Rivulus; Jordanella, genus Jordanella; Xyphophorus, genus Xyphophorus; Lebistes, genus Lebistes