Genus Omosudis


A monotypic genus with the single species Omosudis lowii, the Hammerjaw - a deep-sea fish with prominent sabre-like teeth in both jaws, the distinctively deep lower jaw having one tooth which is considerably longer than the rest, a moderately long tapering body, a short-based dorsal fin and an adipose dorsal fin, a lateral keel on each side of the caudal peduncle and no light organs.

Omosudis is found in tropical and temperate latitudes of all major oceans. A more detailed treatment of this fish is available in Rofen (1966).

Author: Dianne J. Bray

Image Gallery

Cite this page as:
Dianne J. Bray, Omosudis in Fishes of Australia, accessed 25 May 2024,


  1. Bray, D.J. 2008. Family Alepisauridae – Lancetfishes, hammerjaws. In: Gomon, M.F., D.J. Bray & R.H. Kuiter. Fishes of Australia’s Southern Coast. Reed New Holland, Chatswood, Australia.

  2. Ege, V. 1958. Omosudis Günther, bathypelagic genus of fish. 'Dana' Reports 47: 1-19, figs 1-3.

  3. Hoese, D.F., Bray, D.J., Paxton, J.R. & G.R. Allen. 2006. Fishes. In Beesley, P.L. & A. Wells. (eds) Zoological Catalogue of Australia. Volume 35. ABRS & CSIRO Publishing: Australia. parts 1-3, pages 1-2178.

  4. Paxton, J.R. & V.H. Niem 1999. Omosudidae. In Carpenter, K.E. & V.H. Niem (Eds). FAO Species Identification Guide for Fishery Purposes. The Living Marine Resources of the Western Central Pacific. Volume 3. Batoid fishes, chimaeras and bony fishes part 1 (Elopidae to Linophrynidae). FAO, Rome. Pp. iii-vi, 1398-2068.

  5. Rofen, R.R. 1966. Family Omosudidae. In Olsen, Y.H. (ed.) Fishes of the western North Atlantic. Memoir. Sears Foundation of Marine Research 1(5): 462-481 figs 163-172.