The magnificient rabbitfish's name is a reference to its rabbit-like facial features. Its face features black coloring and interlocking jaw. S. magnificus has a flat oval body and is one of the most colorful fish in the genus. Organisms grow to lengths of 24 centimeters. In addition it has a long tubular snout used to obtain food from the bottom of reefs. As well as 13 dorsal spines, 10 soft rays, 7 anal spines, 9 anal soft rays and 23 vertebrae.
Range and distribution
S. magnificus is endemic to the Andaman Sea. The species lives in the Indo-pacific region of the world. The species is only found in reef communities around the Simalian Islands, to as far as Java, Indonesia. The species is tropical,ranging from 15 degrees to 0 degrees latitude. It is usually found at a depth between 2 m- 30m. They live in water temperatures between 24 degrees celsius and 28 degrees celsius.
Signus magnificus is often times found in pairs or found alone. This makes them particularly difficult to find and study. Adults often occur in pair, but juveniles occur alone and hide around and under corals. Although they are not as venomous as other species of Rabbit Fish they are slightly venomous. When this species becomes startled they change to a pale gray color in order to camouflage themselves. Signus magnificus is usually non-aggressive, however when put together in a tank with members of the same species, the fish can become aggressive.
S. magnificus feeds on small algae and other plant material. Its preferred place to feed is the harder bottoms of coral reefs. It is suggested that it developed the long tubular nose for this reason. Although S. magnificus has a preferred food source of algae, it also feeds off of small invertebrates.
A survey was taken of the genus Siganidae before the coral bleaching in 2010 and was abundant. Although S. magnificus is not a species of concern,it was noted that after the coral bleaching, the number of S. magnificus in southwestern Thailand decreased.
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