What is "dryolimnas"

The genus Dryolimnas comprises birds in the rail family. The Réunion rail, a member of this genus, became extinct in the 17th century. The white-throated rail of Aldabra is the last surviving flightless bird in the western Indian Ocean. They are mostly found on Malabar Island, but can also be found on Polymnieli Island and other islands. An undescribed extinct taxon, sometimes mentioned as Sauzier's wood-rail, is known from Mauritius. Though much larger the skeletons of these rails show similarities to the rails of the genus Lewinia. Therefore the two genera were lumped at times.