ClassACTINOPTERYGII Ray-finned fishes
GeneraAcanthaluteres(3) Acreichthys(2) Aluterus(2) Amanses(1) Anacanthus(1) Brachaluteres(2) Cantherhines(4) Cantheschenia(2) Chaetodermis(1) Colurodontis(1) Eubalichthys(6) Meuschenia(8) Monacanthus(1) Nelusetta(1) Oxymonacanthus(1) Paraluteres(1) Paramonacanthus(6) Pervagor(5) Pseudalutarius(1) Pseudomonacanthus(2) Rudarius(2) Scobinichthys(1) Thamnaconus(6)
Small to moderate sized fishes with an oval to circular compressed body, tough leathery skin covered in rough spines and a prominent depressible spine over the eye that can locked in an upright position by a tiny second dorsal-fin spine.
Leatherjackets have a small mouth, a small gill slit, and long-based soft dorsal and anal fins. Pelvic fins are absent, or reduced to a bony element fused to the rear of the pelvic bone.
Leatherjackets are most diverse in Australian waters, with 58 species in 23 genera – more than half the known species worldwide.
Dianne J. Bray, 2012, Leatherjackets , MONACANTHIDAE, in Fishes of Australia, accessed 22 Sep 2014, http://www.fishesofaustralia.net.au/home/family/250