  We consider clones on countable sets. If such a clone has quasigroup
operations, is locally closed and countable, then there is a function $f :
\mathbb{N} \to \mathbb{N}$ such that the $n$-ary part of $C$ is equal to the
$n$-ary part of $\mathrm{Pol}\,\mathrm{Inv}^{[f(n)]} C$, where
$\mathrm{Inv}^{[f(n)]} C$ denotes the set of $f(n)$-ary invariant relations of
$C$.
