The longfin batfish has a flattened, disk-shaped body with a silvery-gray coloration crossed by broad vertical blackish bands. A splash of bright yellow on the pelvic and pectoral fins adds a striking touch ! Its head is slightly convex, and its mouth is relatively small compared with the rest of its body. The longfin batfish averages about 12 inches in length, with a maximum size of approximately 24 inches.

As you can see, the head of the longfin batfish is crossed by a narrow vertical black band running through the eye. A second, broader black band extends across the rear edge of the gill cover and the base of the pectoral fins. This band ends in a black spot on the lower part of the body. Another distinctive black marking, resembling the beginning of a short line, is located at the origin of the anal fin.

The longfin batfish is found in the warm tropical waters of the Indian ocean, particularly in the Maldives and around many islands, as well as in the western Pacific ocean, from Japan in the north to Australia in the south, including Indonesia. It is also found in the Red Sea.

The longfin batfish inhabits waters around coral reefs and shipwrecks down to depths of about 65 feet, although it is also commonly seen swimming in open water near reefs. It usually lives in pairs or small groups of a few individuals, but may occasionally form large schools.

The longfin batfish feeds on jellyfish, crustaceans, and plankton.

The longfin batfish reproduces sexually. Juveniles differ greatly in appearance from adults, particularly because of their extremely elongated dorsal, anal, and, to a lesser extent, pelvic fins, which give the species its common name of longfin batfish !

The longfin batfish can be confused with the orbicular batfish (Platax orbicularis), which also displays two vertical black bands in the same arrangement. However, the orbicular batfish has an overall lighter, more silvery coloration. Another distinguishing feature is the absence of the two black markings found on the longfin batfish !