Description of larvae of Eleotris perniger (Teleostei: Eleotridae) in transition from saltwater to freshwater from Montserrat, West Indies

Larvae of the Smallscaled Spinycheek Sleeper (Eleotris perniger) in transition from saltwater to freshwater were identified using COI and 16S gene sequences and the morphology and color pattern were then described. Available freshwater habitat for this species on Montserrat is minimal and continued existence is threatened by potential water withdrawals.