Species in the genus Pseudopataecus have a greatly compressed head and body, a large number of dorsal and anal-fin ray elements, the frontal part of the cranium with laterally-bowed ridges forming a shallow fleshy depression, and the first dorsal-fin spine arising far forward on the head just before the eyes.
The genus comprises two species, both endemic to Australia.
Johnson, J.W. 2004. Two new species and two new records of aploactinid fishes (Pisces: Scorpaeniformes) from Australia. Records of the Australian Museum 56(2): 179-188. DOI: 10.3853/j.0067-1975.56.2004.1421 PDF available Open access
Johnson, J.W. 2012. Pseudopataecus carnatobarbatus, a new species of velvetfish (Teleostei: Scorpaeniformes: Aploactinidae) from the Kimberley coast of Western Australia. Zootaxa 3245: 54–62.