Priolepis ailina

The <em>Priolepis ailina</em> is a saltwater fish in the family Gobiidae, the gobies — a vast family of predominantly small, benthic fishes found in marine, brackish, and freshwater habitats worldwide. This species has been recorded at depths ranging from approximately 3 to 31 metres, consistent with a shallow reef or rocky substrate habitat in tropical or subtropical marine environments. No maximum body length data are currently available in the literature for this species. Members of the genus <em>Priolepis</em> are typically small reef-associated gobies found in tropical Indo-Pacific waters, often inhabiting crevices, caves, and the underside of coral rubble in clear, warm seas. They are generally secretive and cryptically coloured, making them easy to overlook during field surveys. Details of habitat and range for this species remain limited in the ichthyological literature. Like other small reef gobies, <em>Priolepis ailina</em> is likely a carnivore of small invertebrates such as amphipods, copepods, and polychaete worms. The fused pelvic disc characteristic of gobies is present in this genus. Many species of <em>Priolepis</em> are known to be sequential hermaphrodites, a reproductive strategy that allows for flexible sex allocation based on social environment and resource availability.