The receipt of a grant from the Trustees of the Percy Sladen Fund in 1911 made a return to the Balearic Islands possible in the latter part of the same year. Majorca was visited for the third time while a search for Pleistocene ossiferous remains was undertaken for the first time in Menorca and Ibiza, from which no Pleistocene mammalian remains had previously been recorded. No success attended the search in Ibiza. The deposits discovered in Menorca yielded remains of Myotragus balearicus, those of a gigantic land tortoise, and of a large Eliomys, which proves to be a hitherto undescribed species.