LPVs exhibiting two periods and 94 LPVs for which no period could be detected. The light curves of LPVs without a significant period show a wide variety of shapes. A part of them definitely shows very long variations that exceed the length of our time series. On the other hand, we also have a short period limit because of the sampling interval of our observations, which amounts to approximately 90 days. We also found objects with irregular light variations, sometimes alternating with phases of comparably constant brightnesses. A selection of different LPV light curves detected in both galaxies is presented in . Mono-periodic cases can be found in the panels of the upper two rows. Examples of LPVs exhibiting two significant periods are plotted in the following two rows, which show a beating phenomenon in the second panel of the fourth row. In the last row of , two cases out of the $\approx 20\%$ of our sample stars are given for which no significant period could be determined from the observations. However, taking into account their $(V-i)$, $\sigma$-amplitudes and the time scales of their light variations, they can still clearly be classified as LPVs.

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