(Bostrychus microphthalmus)
Bostrychus microphthalmus is a species of fish from the Butidae family. It is endemic to Maros karst in the South Sulawesi region of Sulawesi, Indonesia. It was the first documented cave-dwelling fish in Sulawesi, but since then the brotula Diancistrus typhlops has been described from nearby Muna Island, and an additional apparently undescribed eleotrid is known from Sulawesi's Maros karst. The specific name of B. microphthalmus refers to the small eyes of this fish.