Redtoothed triggerfish
From Free net encyclopedia
{{Taxobox | color = pink | image = Redtoothed_triggerfish.jpg | name = Redtoothed triggerfish | regnum = Animalia | phylum = Chordata | classis = Actinopterygii | ordo = Tetraodontiformes | familia = Balistidae | genus = Odonus | species = O. niger | binomial = Odonus niger | binomial_authority = Rüppell, 1836 }}
The Redtoothed Triggerfish or Niger trigger (Odonus niger) is a triggerfish of the tropical Indo-Pacific area, the sole member of its genus.
Characteristics
The Redtoothed Triggerfish is a dark blue bodied fish, ranging up to 50 cm in length. The fins are all blue-green in color, having yellow and light blue trim. It has a lyre shaped caudal fin with a yellow bar between the lobes. Like all triggerfish Redtoothed Triggers have a retractable dorsal spine. Their pectoral fins are quite small; as a result they swim mostly with their dorsal and anal fins, which makes them not so fast, but very maneuverable.
Behavior
It inhabits open waters and current-swept seaward reefs between 0 to 35 metres (0-115 feet) and can often be seen in groups turning and circling just under the sea surface while feeding on plankton brought in by the current. Sponges are another part of their menu.
 Group of Redtoothed Triggerfish feeding on plankton. |
 The red teeth are its distinguishing feature. |