This widely distributed genus comprises three species, all found in Australian waters. Species undertake vertical migrations to feed in mesopelagic waters.
Ocean sunfish, the largest bony fishes in the world, have a very deep, oblong to almost circular body, with tall dorsal and anal fins and a small rounded pectoral fin. They have a rudder-like structure or clavus (from the Latin clavus, = rudder) instead of a caudal fin. Their thick skin is covered with rough textured denticles. Molids also have a small rounded mouth with fused teeth forming a plate in each jaw.
Author: Bray, D.J. 2020
Cite this page as:
Bray, D.J. 2020, Mola in Fishes of Australia, accessed 29 May 2023, https://fishesofaustralia.net.au/home/genus/914
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Johnson, G.D. & Britz, R. 2005. Leis' conundrum: Homology of the clavus of the ocean sunfishes. 2. Ontogeny of the median fins and axial skeleton of Ranzania laevis (Teleostei, Tetraodontiformes, Molidae). Journal of Morphology 266(1): 11-21 https://doi.org/10.1002/jmor.10242
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