  Let $(K,v)$ be a henselian valued field. Let $\mathbb{P}^{dless}\subset K[x]$
be the set of monic, irreducible polynomials which are defectless and have
degree greater than one. For a certain equivalence relation $\,\approx\,$ on
$\,\mathbb{P}^{dless}$, we establish a canonical bijection $\mathbb{M}\to
\mathbb{P}^{dless}/\!\!\approx$, where $\mathbb{M}$ is a discrete MacLane
space, constructed in terms of inductive valuations on $K[x]$ extending $v$.
