RATUFA NANOGIGAS (Thomas and Hartert).
1895. Sciurus bicolor nanogigas Thomas and Hartert, Novitates Zoologicæ, II, p. 491. December, 1895 (Pulo Laut).
1900. Ratufa ephippium nanogigas Bonhote, Ann. and Mag. Nat. Hist., 7th ser., V, p. 498. June, 1900 (Pulo Laut).
Four specimens, all from Pulo Laut, the type locality.
This strongly characterized dwarf species is allied to Ratufa pyrsonota and R. bunguranensis with which it agrees in color scheme. It is in no way closely related to the large Bornean R. ephippium.