Gerrit S. Miller, Mammals Collected by Dr. W. L. Abbott on the Natuna Islands
“ Audital bullæ less raised above level of basi-occipital when skull is held upside down and viewed from behind. The sagittal crest, though of normal development in very old individuals, is absent at an age when it is well grown in the larger species. In Arctogalidia leucotis and A. stigmatica, even in animals so young that the teeth are unworn and all the sutures of the rostrum plainly visible, the sagittal crest is a knife-like ridge extending from proencephalon to lambdoid suture, and rising to a height of about 4 mm. over middle of braincase. ”
