Cetichthys indagator is a species of flabby whalefish in the family Cetomimidae and was first described in 1959 by Robert Rees Harry-Rofen as Cetomimus indagator In 1989, it was transferred to the genus, Cetichthys by John R. Paxton.
This pelagic fish has been found at depths of 1500 - 3620 m[1] in the Atlantic, the Indian and Pacific oceans at latitudes of 30 to 40 degrees south.