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Author: (Linnaeus, 1758)

Rhinonemus cimbrius (Linnaeus, 1758)

Diagnosis: first dorsal finrays 1, second dorsal finrays 45-55; anal finrays 36-49. Vertebrae 50-56. Colour: variable, sandy or reddish-brown, lighter on sides, dark oval spot at hind end of second dorsal and anal fins, sometimes several spots on second dorsal fin and sides of body. Size: to 41 cm SL, usually 25-30 cm.

Habitat: on bottom, to 550 m, rarely at 50 m, on soft mud or sand. Behaviour: Little known, local migrations inshore in autumn and offshore in spring. Food: crustaceans, polychaetes, molluscs. Reproduction: from January to October, usually from May to August.

Distribution: northern Atlantic from Bay of Biscay to Iceland and western Barents Sea, western Baltic, rarely to Gulf of Finland. Elsewhere, in western North Atlantic.

Eggs, larvae and young stages. Ehrenbaum & Strodmann, 1904: 79, fig 4 | Ehrenbaum, 1909: 280, fig. 101 | Kazanova, 1953: 243, fig. 17-18.
Otoliths (sagitta). Fryd, 1901: 29 | Schmidt, 1968: 19, pl. 3 (fig. 40), pl. 16.

Four-bearded rockling (Rhinonemus cimbrius)