Johnsonkohina

Johnsonkohina is a genus of ray-finned fish in the family Gobiidae, commonly known as gobies. These small, bottom-dwelling fish are primarily found in the Indo-Pacific region. The genus was described by Douglas F. Hoese and Richard C. Robins in 1977.

Species within the Johnsonkohina genus are characterized by their elongated bodies, often with a pattern of spots or bars. They typically possess two dorsal fins and a fused pelvic fin forming a suction disc, which they use to adhere to substrates like rocks, coral, and seagrass beds. Their diet generally consists of small invertebrates.

Johnsonkohina are often observed in shallow, coastal waters, including coral reefs and estuaries. They are generally solitary and territorial, with males often defending a small area. The reproductive behavior of Johnsonkohina is typical of many goby species, with females depositing eggs on a substrate, which are then guarded by the male.

The classification of Johnsonkohina within the Gobiidae family is based on morphological characteristics. Like other gobies, they play a role in their ecosystem by consuming small invertebrates and serving as prey for larger fish. Due to their small size and often cryptic nature, they are not typically targeted by fisheries.