Taxonomic identity of the enigmatic Western Australian fish species Stigmatonotus australis Peters, 1877 (Teleostei) Author Gill, Anthony C. 0000-0002-8990-3657 Macleay Collections, Chau Chak Wing Museum, University Avenue, The University of Sydney, NSW 2006, Australia. Anthony. c. gill @ sydney. edu. au; https: // orcid. org / 0000 - 0002 - 8990 - 3657 & School of Life and Environmental Sciences, The University of Sydney, NSW 2006, Australia. & Ichthyology, Australian Museum Research Institute, 1 William Street, Sydney, New South Wales 2010, Australia. nthony.c.gill@sydney.edu.au text Zootaxa 2023 2023-05-30 5296 4 551 560 http://dx.doi.org/10.11646/zootaxa.5296.4.4 journal article 53466 10.11646/zootaxa.5296.4.4 93ac2aad-824f-43c9-8341-b7a54d614781 1175-5326 7984390 2D06B1B9-ABBC-4CB5-A3BE-6B15097F5142 [ Stigmatonotus n. gen. Body elliptical, moderately compressed; mouth deeply divided; preopercle serrated, opercle spined; suborbitals narrow, with large pores, unarmed; a band of small, pointed teeth on the jaws, vomer, and palatine bones; scales ctenoid, lateral line incomplete. One long dorsal fin with fewer spines than rays; anal fin with three spines; pelvic fin standing slightly in front of the pectoral fins, with a spine and five rays. Gill opening wide, with six branchiostegal rays; three and a half gills; free filamentous pseudobranchs. Lower pharyngeal bones separated from each other.