  Given two ordinal $\lambda$ and $\gamma$, let $f:[0,\lambda) \rightarrow
[0,\gamma)$ be a function such that, for each $\alpha<\gamma$, $\sup\{f(t):
t\in[0, \alpha]\}<\gamma.$ We define a mapping $d_{f}: [0,\lambda)\times
[0,\lambda) \longrightarrow [0,\gamma)$ by the rule: if $x<y$ then $d_{f}(x,y)=
d_{f}(y,x)= \sup\{f(t): t\in(x,y]\}$, $d(x,x)=0$. The pair $([0,\lambda),
d_{f})$ is called a $\gamma-$comb defined by $f$. We show that each cellular
ordinal ballean can be represented as a $\gamma-$comb. In {\it General
Asymptology}, cellular ordinal balleans play a part of ultrametric spaces.
