When people generally think of a goldfish, they generally think of a common goldfish. There are actually many variety of goldfish and we are going to talk about some of them in this article. I am not going to go in detail for each individual variety, but I am going to list them.

Lets start off with common goldfish since they are, well the most common.

Common goldfish
(Carassius gibelio) are the decedents of the prussian carp. They are normally orange colored, but they have many color variations. They are a slim bodied variety and they have a normal shaped tail.

Comet Goldfish (Carassius auratus) are another slim bodied variety that are very similar to common goldfish. They are also very easy to find, like common goldfish. They have a tail similar to the common goldfish, but their tail is usually longer.

Shubunkin Goldfish (Carassius auratus) are very similar to comet goldfish. They are slim bodied and they have a long tail just like comets do. What is different about shubunkins, is that they have a fancy calico pattern.

Oranda Goldfish (Carassius auratus auratus) are an egg bodied goldfish. They have a double tail and they have a large growth on top of their head known as a wen. It is generally not reccomended to keep them with slim bodied goldfish or koi because they can have a hard tome getting food.

Ryukin Goldfish (Carassius auratus) are another egg bodied breed. They have a double tail just like orandas. They are most known for the hump that they have behind their head.

Lionhead Goldfish (Carassius auratus) are an egg bodied breed, but they lack a dorsal fin. They have a wen similar to what orandas have. They have a double tail, but their tail is shorter. They are the precursor to the ranchu.