  We discuss the memristive fingerprints of the hybrid Cassie-Mayr model of
electric arcs. In particular, it is shown that (i) the voltage-current
characteristic of the model has the pinched hysteresis nature, (ii) the voltage
and current zero crossings occur at the same instants, and, (iii) when the
frequency $f$ of the power supply increases, the voltage-current pinched
hysteresis characteristic tends closer to a single-valued one, meaning that the
voltage-current graph becomes that of a resistor (with an increased linearity
for $f\rightarrow \infty$). The conductance $g$ of the Cassie-Mayr model
decreases when the frequency increases. The hybrid Cassie-Mayr model describes
therefore an interesting case of a memristive phenomenon.
