The capricornoid resembles the horns of a (male) capricorn goat:
The curve is a quartic^{1)},
and some examples of the curve are the following:
notes
1) Cartesian equation in a form we often encounter: A^{2}(x^{2} + y^{2}) = B(Ay  x^{2}  y^{2})^{2},
where above parameter a = √B / A.
