1) Known Space alien species 
The Jotoki (singular Jotok) are a fictional alien race from Larry Niven`s Known Space books. They were first described in the novelette The Survivor by Donald Kingsbury, in Man-Kzin Wars IV Jotoki resemble large, spindly starfish. They have a torochord (ring-shaped) instead of a notochord, with 5 `self-sections` (apparently semi-independent bra......