Catulla

From Memory Alpha, the free Star Trek reference

Catulla is the homeworld of the Catullan species.

In 2269, Catulla and the Federation were engaged in treaty negotitations. On stardate 5832, the negotiation period had reached a critical phase, but was threated to be impacted by the actions of the son of the Catullan ambassador to the Federation, Tongo Rad. (TOS: "The Way to Eden")

The Star Trek Encyclopedia alludes to the possibility that Catulla was in the process of applying for Federation membership. It also spelled Catulla as "Catualla," as does the closed captioning. According to a non-canon source, The Worlds of the Federation, the star that Catulla orbits is named Theta Pictoris, and the Catullans refer to their world as Cendo-Prae.