  The general analytical solution for the static spherically symmetric metric
supported by a perfect fluid with proportional-equation-of-state $p = w \rho$
is not known at the time of this writing, except for the trivial cases $w=0$
and $w=-1$; for $w=-1/3$, and the recently reported $w=-1/5$. We show that the
case $w=-1/6$ is also analytically solvable, as predicted in another recent
work. The solution is affected by a Buchdahl transformation of a known
solution.
