Boundarian

Boundarians were a race known to the Federation in the mid 24th century. They were characterized by their round bodies, and high, squeaky voices which issued from a valve at the top of their head. They also had a strong sense of personal honor, comparable to that of the Klingons.

A Boundarian captain was present at The Captain's Table when David Gold told his story about Abraham Silver. (SS SCE (An Easy Fast))