Nosestripe anemonefish

Appearance

The skunk clownfish is identified by a light orange color, with a single, narrow, white stripe running from the mouth to the caudal peduncle, and can grow as large as 11 cm in length.
Like other anemonefish, the skunk clownfish is a protandrous hemaphrodite, and maintains a hierarchy within the host anemone that consists of a mating pair, of which the female is the largest, and non-mating males which get progressively smaller in size.

Naming

The mid-dorsal stripe and absence of head and body bars distinguishes ''A. akallopisos'' from most anemonefish except the orange anemonefish ''A. sandaracinos'' and they have an overlapping distribution around Java and Sumatra. The skunk anemonefish has a narrower stripe that does not reach the upper lip. ''A. sandaracinos'', as it's common name suggests, is a bright orange, while ''A. akallopisos'' is paler, tending to be more pink than orange.

Distribution

''A. akallopisos'' is found in the Indian ocean from Java and the Java Sea, western and southern coasts of Sumatra, the west coast of Thailand and north to the Andaman Islands west to Madagascar, Comoro Islands and Seychelles.

Behavior

The skunk clownfish, and other clownfish, use sound production to defend their territory. This behavior is most common with damselfishes that produce a wide variety of sounds, a behavior shared with at least 10 species of anemonefish. Sounds resembling pops and chirps are most commonly heard when interacting with invading fish of the same species or different species. Studies have shown that it is the female that defends the anemone using sound production, as well as a physical charge when other fishes attempt to enter. ''A. akallopisos'' exhibit three different types of sounds, pops, short chirps, and long chirps, used depending on the type and duration of the encounter, which can also vary by locality.

Habitat

''A. akallopisos'' is found in the Indian ocean from Java and the Java Sea, western and southern coasts of Sumatra, the west coast of Thailand and north to the Andaman Islands west to Madagascar, Comoro Islands and Seychelles.