Genus Lythrichthys

A genus of Setarchidae with the following characters: Anal-fin rays usually III, 5 (rarely III, 4 or III, 6); predorsal scales 7–12; body depth at pelvic-fin origin and interorbital width at vertical midline of eye 29.1–38.6% and 8.1–12.9% of SL, respectively; snout, dorsal and ventral surface of head without scales; at least three-quarters of lateral surface of premaxilla covered by well-developed lip; first lacrimal spine well developed, about same length as second and third spines; 5 preopercular spines, second rudimentary or much shorter than first and third, first and third spine much longer than lower 2, fourth and fifth subequal in length; tip of first lacrimal spine just reaching or extending over upper lip; thoracic and abdominal scales well embedded in skin; swimbladder well developed; intestine and pyloric caeca black or grey; single supraneural; abdominal vertebrae 9, caudal vertebrae 15; tip of second anal proximal-pterygiophore located between ninth abdominal and first caudal vertebrae. 
Author: Bray, D.J. 2021

Image Gallery

Cite this page as:
Bray, D.J. 2021, Lythrichthys in Fishes of Australia, accessed 15 Jul 2024,


Wada, H., Kai, Y. & Motomura, H. 2021. Redescription of the circumglobal deepwater scorpionfish Setarches guentheri (Setarchidae). Ichthyological Research 68: 32–54

Wada, H., Kai, Y. & Motomura, H. 2021. Revision of the resurrected deepwater scorpionfish genus Lythrichthys Jordan and Starks 1904 (Setarchidae), with descriptions of two new species. Ichthyological Research 68: 373–403