MicroichthysMicroichthys is a genus of very small deepwater cardinalfishes which were only known from the Strait of Messina in the Mediterranean Sea, although M. coccoi has recently been recorded in the Aegean Sea and around the Azores.SpeciesThe currently recognized species in this genus are:Microichthys atlanticus Fricke, Ordines, Williston, 2020Microichthys coccoi Rüppell, 1852 Microichthys grandis Wageningen Marine Research, 2023 Microichthys sanzoi Spartà, 1950