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''Luciogobius'' is a genus of fish in the goby family, Gobiidae. It is distributed along the coast of northeastern Asia, where species can be found in Korea, China, Taiwan, and Japan. Most species occur in Japan, and several are endemic.〔Kanagawa, N., et al. (2011). (Two new species of freshwater gobies of the genus ''Luciogobius'' (Perciformes: Gobiidae) from Japan. ) ''Bull Kanagawa Prefect Mus (Nat Sci)'' 40, 67-74.〕 These gobies are unusual in appearance and habitat preference. They are small fish, about 2 to 7 centimeters long, with very elongated bodies. The vertebral column is flexible and finely segmented, with many more vertebrae than most other fish in the family; they have up to 50 vertebrae, whereas most gobies have about 26. This extra-segmented spine helps ''Luciogobius'' species burrow in their common habitat, gravel beaches. Most vertebrates would have difficulty living in gravel that is constantly stirred by tidal action, but the flexibility of the bodies of ''Luciogobius'' is likely an adaptation to this environment. They also lack scales and the first dorsal fin.〔Yamada, T., et al. (2009). (Adaptive radiation of gobies in the interstitial habitats of gravel beaches accompanied by body elongation and excessive vertebral segmentation. ) ''BMC Evolutionary Biology'' 9 145.〕 Other habitat types occupied by species in the genus include estuaries, freshwater streams, and in the case of ''L. adapel'', the seafloor up to 50 meters deep.〔Kondo, M., et al. (2012). (Spawning habitat and early development of ''Luciogobius ryukyuensis'' (Gobiidae). ) ''Environmental Biology of Fishes'' 95(2), 291-300.〕 Most of the species studied spawn in the intertidal zone, but one species has been observed spawning in freshwater rivers. The eggs are generally attached to the undersides of rocks or are buried in the gravel or stone substrate.〔 ==Species== There are currently 16 recognized species in this genus. There are many more taxa known that have not yet been described to science, for a probable total of about 37 species.〔 Species include:〔 * ''Luciogobius adapel'' Okiyama, 2001 * ''Luciogobius albus'' Regan, 1940 * ''Luciogobius ama'' (Snyder, 1909) * ''Luciogobius brevipterus'' J. S. T. F. Chen, 1932 * ''Luciogobius dormitoris'' Shiogaki & Dotsu, 1976 * ''Luciogobius elongatus'' Regan, 1905 * ''Luciogobius fluvialis'' Kanagawa, Itai & Senou, 2011 * ''Luciogobius fonticola'' Kanagawa, Itai & Senou, 2011 * ''Luciogobius grandis'' R. Arai, 1970 * ''Luciogobius guttatus'' T. N. Gill, 1859 (flat-headed goby) * ''Luciogobius koma'' (Snyder, 1909) * ''Luciogobius pallidus'' Regan, 1940 * ''Luciogobius parvulus'' (Snyder, 1909) * ''Luciogobius platycephalus'' Shiogaki & Dotsu, 1976 * ''Luciogobius ryukyuensis'' I. S. Chen, T. Suzuki & Senou, 2008〔Chen, I. S., et al. (2008). (A new species of gobiid fish, ''Luciogobius'' from Ryukyus, Japan (Teleostei: Gobiidae). ) ''Journal of Marine Science and Technology'' 16(4), 250-54.〕 * ''Luciogobius saikaiensis'' Dotsu, 1957 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Luciogobius」の詳細全文を読む スポンサード リンク
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