OCR Text |
Show 126 MR. W. OTTLEY. ON THE [Feb. 4, find no trace of it; but the superior oblique has now moved forward so as to be inserted close behind the superior rectus; while the inferior oblique still remains near the optic nerve, which still enters on the inner side of the fundus, though in Hapale pemcillata it is only ^ inch nearer to the inner than to the outer border of the cornea. Fi-. 8. Fig. 9. Fig. 8 is a diagram, seen from above, of tbe attachments of the superior oblique and superior rectus in Mycetes seniculus. Fig. 9. Ditto in Hapale penicillata. In the Cebidae the rectus and obliquus are inserted almost at right angles with one another (in Cebus the superior oblique is quite at right angles to the superior rectus); while in Hapale penicillata and Midas rosalia the superior rectus is so oblique as to approach Fig. 10. A diagram, from above, of tbe eye of a Lemur; indicates the relations of the choanoid, superior oblique, and superior rectus. the direction of the superior oblique ; in these also the external rectus is very convex forwards. There is no tapetum in any of the Quadrumana that have been examined. |