Bostrychus microphthalmus is a species of fish from the family Butidae.[1][2][3] It is endemictoMaros karst in southern Sulawesi, Indonesia. It was the first documented cave-dwelling fish in Sulawesi,[1] but since then the brotula Diancistrus typhlops has been described from nearby Muna Island,[4][5] and an additional apparently undescribed eleotrid is known from Sulawesi's Maros karst.[6]
| Bostrychus microphthalmus | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gobiiformes |
| Family: | Butidae |
| Genus: | Bostrychus |
| Species: |
B. microphthalmus
|
| Binomial name | |
| Bostrychus microphthalmus | |
The specific nameofB. microphthalmus refers to the small eyes of this fish.[2]
Bostrychus microphthalmus grow to 7.5 cm (3.0 in) SL. The head is flat on top and the trunk region is elongate. It differs from other Bostrychus species by having reduced eyes covered with skin and reduced head canal development, body pigment, and head squamation.[1][2]
The species is a cave dweller that is usually found in backwaters, lying on clay bottom.[1][2]