Also known as: ツインテール(ウルトラ怪獣), 古代怪獣ツインテール, ツインテール
Ultra Series Kaiju, first appearing in Kaette Kita Ultraman, alongside its natural predator, Gudon.
It has no arms or legs, its head is on the underside, and, as its name suggests, it has a pair of tails on the upper part of its body. It is said that the young of this species taste similar to shrimp.
It is said that this is the origin of the name for the Twintails.