Tschak

The tschak were a crustacean race native to the Gamma Quadrant.

Biology
the tschak were crablike, with half a dozen barbed and jointed legs that would presumably have supported its body with a row of manipulative members along the front of its torso that resembled forked tentacles with elbows in them. Four black pits arranged above the manipulators. It as purplish flesh and breathes hydrogen-methane atmosphere.