The Hippoglossoidinae are a

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...

of fish in the family

Pleuronectidae Pleuronectidae, also known as righteye flounders, are a family of flounders. They are called "righteye flounders" because most species lie on the sea bottom on their left sides, with both eyes on their right sides. The Paralichthyidae are the op ...

. The name is derived from the

Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic peri ...

words ''hippos'', "horse", ''glossa'', "tongue", and ''eidos'', "form, likeness".

Genera

* '' Acanthopsetta'' * ''

Cleisthenes Cleisthenes ( ; grc-gre, Κλεισθένης), or Clisthenes (c. 570c. 508 BC), was an ancient Athenian lawgiver credited with reforming the constitution of ancient Athens and setting it on a democratic footing in 508 BC. For these accomplishm ...

'' * ''

Hippoglossoides ''Hippoglossoides'' is a genus of righteye flounders native to the North Pacific and North Atlantic oceans. Species There are currently four recognized species in this genus: * ''Hippoglossoides dubius'' Schmidt, 1904 (Flathead flounder) * ''H ...

'' Pleuronectidae Fish subfamilies {{Pleuronectiformes-stub