Galactacma Scorpionfish

Sebastapistes galactacma

The Galactacma Scorpionfish, known scientifically as Sebastapistes galactacma, is a small reef fish found in tropical Pacific waters. It is identified by its reddish base color adorned with numerous white dots, resembling stars in the Milky Way. This unique pattern serves as camouflage among the corals and rubble of its habitat. The species is characterized by two spines connected to a lacrimal bone, a feature common among scorpionfish. Typically, these fish grow to a size of 1 to 3 inches, with some individuals reaching up to 4.9 cm in length. Notably, those found in Micronesia may have emarginate scales, which are slightly indented and notched, as opposed to the smooth-edged cycloid scales seen in other regions. Galactacma Scorpionfish inhabit seaward reefs, particularly in areas facing the open ocean. They are benthic creatures, residing on or near the seafloor in coral and rubble areas. This species is found in locations such as Hawaiʻi, Rapa Nui, Pohnpei, and Guam. The Galactacma Scorpionfish is classified as Least Concern by the IUCN. Divers encountering this species should exercise caution due to its venomous spines, a common trait among scorpionfish.