Richardsonichthys
Richardsonichthys is a genus of ray-finned fishes in the family Gobiidae, which are commonly known as gobies. The genus currently contains two recognized species: Richardsonichthys acutirostris and Richardsonichthys granulosus. Both species are small, benthic fish that inhabit coastal waters of the Indo-Pacific region.
Common Names
These fish are commonly known as "Richardson's gobies" in reference to the genus name. However, specific common names for each species are not widely used.
Characteristics
Richardson's gobies are characterized by their small size, generally reaching a maximum length of around 5-7 cm. They have elongated bodies with flattened heads and large eyes. Their mouths are small and slightly upturned, with pointed snouts. Some species, like R. acutirostris, have sharp, needle-like teeth. Their bodies are typically covered in scales, which can vary in size and distribution depending on the species.
Environment
Richardson's gobies are primarily found in shallow coastal waters, often inhabiting rocky reefs, seagrass beds, and muddy bottoms. They are typically found in tropical and subtropical regions of the Indo-Pacific, ranging from the eastern coast of Africa to the Pacific islands.
References
For more information on Richardsonichthys, consult the following reliable sources: