Theskian

Lieutenant Thralen, a Theskian, is described as having blue skin, antennae and yellow fur-like hair. An Enterprise-D crewman, his race is said to be "related" to Andorians, but "more gregarious". Metamorphosis, Pocket Books, 1990, by Jean Lorrah. Speculation: Events of the post-series DS9 novels suggests that Theskians are perhaps derived from an old Andorian colony world, and have the same four-gendered paradigm, otherwise a study of their genetics might have assisted the entrenched Andorian population problems much earlier.