Snnanagfashtalli was a felinoid officer who served in Starfleet in the 23rd century. Her species was similar to the Eeiauoans, but proved immune to ADF syndrome. She and Doctor Evan Wilson fought, pitting her claws and against Wilson's quarterstaff, with mixed results before reaching Sivao. Around Stardate 2950.3, she was assigned to the USS Enterprise. (TOS novel: Uhura's Song) By 2285, Snnanagfashtalli was a Lieutenant commander, and beamed down to Gateway with Beranardi al Auriga and Max Arrunja in order to return Spock to the USS Enterprise. (TOS novel: Time for Yesterday)