SCIURUS NATUNENSIS (Thomas).
1894. Sciurus lowi Thomas and Hartert, Novitates Zoologicæ, I, p. 659. September, 1894 (Sirhassen).
1895. Sciurus lowi natunensis Thomas, Novitates Zoologicæ, II, p. 26. February, 1895 (Revised determination of Sirhassen specimen).
1895. ? Sciurus lowi natunensis Thomas and Hartert, Novitates Zoologicæ, II, p. 491. (Bunguran and Pulo Laut.)
Four specimens from Sirhassen. The average and extreme measurements are as follows: total length 222 (215-229); head and body 135 (133-140); tail vertebræ 86 (82-89); hind foot 33.6 (33-35); hind foot without claw 31.5 (30.5-32).