A South American cichlid, the Green Terror is a colorful fish that reaches lengths of around 9". As the name implies this species can be very aggressive, especially adult specimens. This is not guaranteed, however, and peaceful individuals are often observed. Juvenile Green Terrors are often sold in pet shops, as well as fish similar enough to be mistaken for this species (including the Blue Acara). Scientific classification - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Bilateria Acoelomorpha Orthonectida Rhombozoa Myxozoa Superphylum Deuterostomia Chordata (vertebrates, etc. ... Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Subclasses Actinopterygii Sarcopterygii Osteichthyes are the bony fish, a group paraphyletic to the land vertebrates, which are sometimes included. ... Orders See text The Actinopterygii are the ray-finned fish. ... Families many, see text The Perciformes, also called the Percomorphi or Acanthopteri, include about 40% of all fish and are the largest order of vertebrates. ... Genera Apistogramma - Dwarf Cichlids Astronotus (Oscars) Boulengerochromis Cichlasoma - American Ciclids Crenicichla Pterophyllum - Freshwater Angelfish Symphysodon - Discus Teleogramma Tilapia Cichlids are a family of perciform fishes. ... In biology, binomial nomenclature is a standard convention used for naming species. ...
The fish is somewhat deep-bodied with a prominent head. Adult males develop a pronounced forehead hump, a common cichlid trait. Juveniles are tan colored with silver-blue flecks and lack the bright blue, green, and orange coloration and long, flowing fins of adult specimens.