Maroon clownfish
Spine Cheek Anemonefish ( Premnas biaculeatus )
The Spine Cheek Anemonefish ( Premnas biaculeatus ) has a maximum length of 17 centimeters, the largest species of anemone fish. However, males stay much smaller ( 6-7 inches ). It differs from all other clownfish by a sting on the lower gill cover, which is why it is also called sting clownfish. The Spine Cheek Anemonefish live in the coral reefs of Southeast Asia, New Guinea, the Solomon Islands, Vanuatu and Great Barrier Reef at depths of one to six meters. He lives with the BTA ( Entacmaea quadricolor ) together as a symbiotic partner.
Features
The Spine Cheek Anemonefish is brightly colored, brown or burgundy. Juveniles and small males are more bright red, the females are increasingly darker and more are aged chestnut -colored or nearly black. The length of the fish is the 1.9 to 2.3 times the body height. A horizontal stripe runs directly behind the eye on the head, another, stretching from the indentation between the spine- bearing and soft-rayed part of the dorsal fin up to the anal fin, and a third on the caudal peduncle. The stripes are white, with large females also gray, for the population to Sumatra and the Mentawai Islands yellow. They are narrower than in the anemone fish of the genus Amphiprion.
The dorsal fin has nine to ten hard - and 16 to 19 soft rays, the anal fin two hard - and 13 to 15 soft rays. The pectoral fins are supported 16 to 18 fin rays. On the first branchial arch are 17 to 21 gill Reuse extensions.
Samtanemonenfische feed on zooplankton and algae.
System
The Spine Cheek Anemonefish was originally described by Marcus Eliezer Bloch biaculeatus as Chaetodon. Today he is after Gerald R. Allen temporarily the genus Amphiprion then assigned him, the only species of the genus Premnas. Some authors, such as Rudie H. Kuiter, view the gelbstreifigen copies of Sumatra as a separate species, which got the name Premnas epigramma. Phylogenetically the Spine Cheek Anemonefish is the sister species of all other anemone fish. He is known to have sufficiently closely related to Amphiprion ocellaris, he can be cross with him.