RX J1313.2-3259, a missing link in CV evolution?

We present low-state IUE spectroscopy of the ROSAT-discovered polar RXJ1313 .2-3259. The SWP spectrum displays a broad Ly alpha absorption profile, whi ch can be fitted with a two-temperature model of a white dwarf of T-wd = 15 000 K with a hot spot of T-spot = 34 000 K which covers f similar to 0.01 of the white dwarf surface. The white dwarf temperature is atypically low f or the long orbital period (4.18 h) of RXJ1313.2-3259. This low temperature implies either that the system is a young CV in the process of switching o n mass transfer or that it is an older CV found in a prolonged state of low accretion rate, much below that predicted by standard evolution theory. In the first case, we can put a lower limit on the life time as pre-CV of 10( 8) yrs. In the second case, the good agreement of the white dwarf temperatu re with that expected from compressional heating suggests that the system h as experienced the current low accretion rate for an extended period > 10(4 ) yrs. A possible explanation for the low accretion rate is that RXJ1313.2- 3259 is a hibernating post nova and observational tests are suggested.