What is "charax"

Charax may refer to:

• Charax, Crimea, the largest Roman military settlement excavated in the Crimea
• Charax Spasinu, an ancient port at the head of the Persian Gulf
• Charax Sidae or Anthemusias, an ancient Mesopotamian town Seleucia in Mesopotamia
• Charax, Bithynia, an ancient Greek town in Turkey and possible location of the death of Constantine the great
• Cape Charax, or possibly Cape Lithinon, a promontory at the southernmost point of the island of Crete
• Charax (genus), a genus of fish in the family Characidae

Charax is a genus containing several species of tetras, including the glass headstander, C. gibbosus. These fish, among other characteristics, are small, translucent, and have a rhomboid shape.