southern flounder

{{Short description|Family of fishes}}

{{Automatic taxobox

| name = Southern flounders

| image = Neoachiropsetta milfordi (Armless flounder).gif

| image_caption = Armless flounder
Neoachiropsetta milfordi

| taxon = Achiropsettidae

| authority = Heemstra, 1990

| type_genus = Achiropsetta

| type_genus_authority = Norman, 1930

| subdivision_ranks = Genera

| subdivision =

Achiropsetta

Mancopsetta

Neoachiropsetta

Pseudomancopsetta

}}

The southern flounders or armless flounders are a small family, Achiropsettidae, of flounders found in Antarctic and sub-Antarctic waters. There are four genera, each with one species.

The bodies of southern flounders are greatly compressed, with both eyes on the left side of their heads. The caudal fin is separate, and the pectoral fins are rudimentary or entirely absent; none of the fins has spines. The lateral line is straight and well-developed. The family varies considerably in size, from {{convert|11|cm|in|abbr=on}} of Pseudomancopsetta andriashevi to the {{convert|57|cm|in|abbr=on}} length of Neoachiropsetta milfordi.

Little is known of the habits of the species in this family.