The inversion of a spindle torus. If the inversion center lies on the torus, then the spindle cyclide degenerates to a parabolic spindle cyclide.
Spindle Cyclide
See also
Cyclide, Horn Cyclide, Parabolic Cyclide, Ring Cyclide, Spindle Torus, TorusExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Spindle Cyclide." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SpindleCyclide.html