Notothenioidei

The suborder Notothenioidei comprises approximately 75 percent of all Antarctic fishes and includes about 75 species. These fish are typically codlike or sculpinlike percoids. They are primarily found in Antarctic and subantarctic seas, with some species also inhabiting cold temperate waters near Chile, Argentina, and New Zealand.1

The suborder is divided into five families:
* Bovichthyidae: With about 11 species found in subantarctic and south temperate seas.1
* Nototheniidae (Antarctic cods): This family includes about 50 species, most of which are found in subantarctic waters. Some species resemble true cods and have a barbel on their lower jaw.1
* Bathydraconidae (Antarctic dragonfishes): These fish have elongated bodies and a spatulate snout. They inhabit the coasts of the Antarctic continent.1
* Channichthyidae (white-blooded fishes or icefishes): These fish are unique for lacking red blood cells and hemoglobin. They are found in Antarctic waters and have scaleless bodies.1
* Harpagiferidae (plunderfishes): These marine fish are found in Antarctic and southern South American waters.1