HomeFish encyclopediaRay-finned fishesGrinnersLizardfishesBrushtooth lizardfish Brushtooth lizardfish (Saurida undosquamis) Scientific name: Saurida undosquamis Richardson, 1848 The Brushtooth lizardfish (Saurida undosquamis) is a marine fish of the family Synodontidae. BiologyFound on the sublittoral zone above 100 m over sand or mud bottoms of coastal waters. Feeds on fishes (anchovy and red mullet Mullus surmuletus), crustaceans, and other invertebrates. Spawns from April to May off Japan. Generally marketed frozen, sometimes fresh and as fish cakes ('kamaboko') in Japan. Minimum depth from.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSaurida undosquamisFamilySynodontidae (Lizardfishes)OrderAulopiformes (Grinners)ClassActinopterygii (Ray-finned fishes)Maximum length50.0Common length30.0Depth range1–350 m (3–1148 ft)EnvironmentMarine; reef-associated; amphidromous; depth range 1 - 350 mClimateSubtropicalDistributionEastern Indian Ocean, Malay Peninsula, southern Philippines, northern Java, Arafura Sea, Louisiade Archipelago, and northern half and southwestern Australia. Distribution needs revision due to questionable (unconfirmed) occurences as reported by major references (see Inoue & Nakabo 2006,:385-6).Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.3-0.9; tm=1-2; tmax=8) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026