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The ridge scaled rattail [2] or ridge-scaled grenadier, [3] Macrourus carinatus, is a species of deep-water fish in the family Macrouridae. [1] [2] It has southern circumglobal distribution in temperate to subantarctic waters (34°S–65°S) and is found in the Southern Atlantic, Indian and Pacific Oceans and in the Southern Ocean [1] [2] at depths of about 200–1,200 m (660–3,940 ft).
The species in the genus Macrourus have large broad heads which are over four times as deep as they are long with a snout which varies from rounded to bluntly pointed, with a substantial modified spiny scale at its tip. They have a strong, suborbital ridge that extends onto preopercle and ends with a sharp point. The eyes have a diameter of ...
The scales are small. As with many deep-living fish, the lateral line system in grenadiers is well-developed; it is further aided by numerous chemoreceptors located on the head and lips and chemosensory barbels underneath the chin. Benthic species have swim bladders with unique muscles attached to them. The animals are thought to use these ...
Macrouridae is a family of deep sea fish, a diverse and ecologically important group, [2] which are part of the order of cod-like fish, the Gadiformes.The species in the Macrouridae are characterised by their large heads [3] which normally have a single barbel on the chin, [4] projecting snouts, and slender bodies that taper to whip-like tails, without an obvious caudal fin [3] but what there ...
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Coryphaenoides rupestris is a species of marine ray-finned fish in the family Macrouridae. Its common names include the rock grenadier, the roundnose grenadier and the roundhead rat-tail. In France it is known as grenadier de roche and in Spain as granadero de roca. It is a large, deep-water species and is fished commercially in the northern ...
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The eye is large and bulbous, giving the fish its alternative name of onion-eye grenadier. There are two dorsal fins, the front one having 11 to 13 finrays and the hind one running along the back to the tip of the tail. The anal fin is similarly long and narrow and there is no tailfin. The body is covered in large ridged, spiny scales.