Tridentiger is a genus of fish in the subfamily of gobies called the Gobionellinae, known commonly as the tripletooth gobies.
These fish are native to the coastal waters of China, Japan, and Korea, where they live in brackish habitat types. They are often dominant members of the local fish fauna. Some are known as invasive species in North America.
These gobies are generally under long.
Species There are currently 6 recognized species in this genus: Tridentiger bifasciatus Steindachner, 1881 (Shimofuri goby) Tridentiger brevispinis Katsuyama, R. Arai & M. Nakamura, 1972 Tridentiger kuroiwae D. S. Jordan & S. Tanaka (I), 1927 Tridentiger niger Fang, 1942 Tridentiger obscurus Temminck & Schlegel, 1845 (Dusky tripletooth goby) Tridentiger trigonocephalus T. N. Gill, 1859 (Chameleon goby)
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