Kailola's hardyhead (Craterocephalus kailolae) is a species of fish in the family Atherinidae endemic to Papua New Guinea. It reaches a maximum length of 6 cm. It inhabits shallow, clear creeks with gravel substrate. This species was described by Walter Ivantsoff, Lucy Crowley and Gerald R. Allen in 1987 with a type locality of a still backwater of Foasi Creek 3 kilometers west of Safia airstrip in Papua New Guinea. The specific name honours the Patricia J. Kailola, for her contribution to the knowledge of the ichthyology of Papua New Guinea.[1]