Phelsuma guentheri is only known presently
from an offshore island north-east of Mauritius; Round Island.
In the 17th century, Phelsuma guentheri must still have been
present on the main island since sub-fossil eggshells where
found on rocks (Jones 1988).
Terra typica
Round Island, Mauritius
Biotope
Round island is about 150 ha with a highest peak of
280 m. The steep hillsides are covered with the typical Maskarene
savannah palms like Latania loddigesii, Hyophorbe lagenicaulus,
Dictyosperma album and Pandanus vandermeerschii. Most
Phelsuma guentheri are found on these palms together with
Phelsuma ornata but some are also found on lava rock boulders. Round
islands and its scarce vegetation is very vulnerable for cyclones and
strong winds, common from November till April. The average rainfall on
the island is about 2000 mm an the average temperature around 23° C.