This is a newly hatched juvenile Eumicrotremus awae lumpsucker, a species found along the Pacific coast of Japan's main island of Honshu. The fish is 2mm to 3mm in size, perched on brown algae (Lessoniaceae). The white ring pattern is characteristic of juveniles, disappearing as the juvenile takes on permanent coloration. This one has already begun to adopt an orange-red hue.