The Jeffrey's goby (Buenia jeffreysii) is a species of goby fish.
It maximum length is 6 cm (2.4 in).[3] It has 5–6 dorsal spines and 8–10 dorsal soft rays; 1 anal spine and 7–8 anal soft rays; and 30 vertebrae. The male can be distinguished by the second ray of the first dorsal fin, which is elongated.[4][5] It is silvery in colour, with red and dark brown blotches.[6]
Jeffrey's goby lives in the North Atlantic Ocean; it is a demersal fish, living at depths of 5–330 m (16–1,083 ft).[7] It is common in the waters around Great Britain and Ireland.[8] It is one of only two gobies that can live in the cold waters off southeast Iceland, the other being Lebetus scorpioides.[9][10] It is also recorded in the Mediterranean Sea.[11]
Jeffrey's goby spawns in May to September. Its eggs are pear-shaped and laid in mussel shells, and guarded by the male. It feeds on copepods, bony fish and crabs.[12]
