  The fluctuation conductivity $\sigma_{\rm s}$ in bulk superconductors with
non s-wave pairing and with nonmagnetic disorder of strength $D$ is studied at
low $T$ and within the Gaussian approximation. It is shown by assuming a quasi
two-dimensional (2D) electronic state that, only if the gap function
$d_\mu({\p})$ is, as in a 2D p-wave pairing state, linear in the in-plane
(relative) momentum ${\p}_\perp$, the in-plane fluctuation conductivity on the
line $D=D_c$ is weakly divergent in low $T$ limit. The present result may be
useful in clarifying the true gap function of spin-triplet ${\rm Sr_2RuO_4}$
through resistivity measurements.
