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It is up to 45 cm long, brown and yellow on the head and back, paler below with darker spots along the sides. The shape of its body is long and laterally flattened, the mouth almost is vertical in the head. The front half of the first dorsal fin is black and consists of three spines which are highly poisonous, as are the backward facing spines on the extremities of the gill covers..
The spotted weever lives close to the bottom down to about 100 m. It prefers a subtropical climate; the coordinates are 45°N - 18°S, 19°W -36°E.
The spotted weever can be found from Portugal to Angola and the Mediterranean. It is of minor commercial importance. It inhabits the shallow waters to about 100m depth near rocks and sea grass nearby, burrowing in the bottom. Just as other weevers, it feeds on small fish and crustaceans.
- Carpenter, K.E.; Smith-Vaniz, W.F.; de Bruyne, G. & de Morais, L. (2015). "Trachinus araneus". The IUCN Red List of Threatened Species. 2015: e.T198718A42691939. doi:10.2305/IUCN.UK.2015-4.RLTS.T198718A42691939.en.
- Froese, Rainer and Pauly, Daniel, eds. (2018). "Trachinus araneus" in FishBase. April 2018 version.
- Family Trachinidae Archived 2006-09-23 at the Wayback Machine
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