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Author: (von Düben, 1845)

Crystallogobius linearis von Düben, 1845

Diagnosis.: see genus, but patterns of sensory papillae require detailed description. Male with prominent front canine teeth in markedly curved lower jaw. D1 TI-III (male), O or rudimentary (female); D2 I + 18-20; A I + 20-21. Vertebrae 30 (29-31). Colour: body transparent; some chromatophores on lower jaw and along bases of median fins. Size: to 4.7 cm (male) and 3.9 cm (female).

Habitat: nektonic, coastal to offshore in 400 m, over shell, sand, mud; males bottom-living during breeding season. Food: zooplankton. Reproduction: May-August (Oslofjord); post-larvae from June to September (south-west Ireland). Males guard eggs (1.2-1.5 x 0.4-0.5 mm) in empty tubes of larger worms, such as Chaetopterus. Fecundity to 340. Sexually mature by 1 year, adults die after breeding. Lifespan. 'annual'.

Distribution: Eastern Atlantic (Lofotens, Norway, to Gibraltar); Mediterranean .

Eggs, larvae and young stages. Collett, 1878b: 331 | Appellof, 1892: 16 | Raffaele, 1895: 129; 1899: 331 | Grieg, 1899: 10, fig. 1 | Ehrenbaum, 1905: 101, fig. 45 | Lo Bianco, 1909: 713 | Clark, 1914: 373 | Fage, 1918: 97 | Lebour, 1919: 78, pl. 3 (fig. 16) | Petersen, 1919: 59, pl. 1 (fig. 24-26) | de Buen, 1932: 19, fig. 11 | Tåning, 1940: 280 | Padoa, 1953: fig. 564-568.
Otoliths (sagitta). No data.

Crystal goby (Crystallogobius linearis)