| OCR Text |
Show 1882.] MR. W. A. FORBES ON THE GREAT ANTEATER. 293 sions as its fellow, being more richly convoluted by the development m it of minor fissures and impressions not present in the other. It is that of which the lateral and internal views are here figured (figs. 3, Fig. 3. Brain, from the side, of specimen d. Fig. 4. The same, from the inside. All these figures are of the natural size. a, Limbic fissure, inferior arc of (Broca); b, fissure of Rolando (Broca); c, primary parietal sulcus; d, e, additional sulci of circumsylvian gyrus ; s, fissure of Sylvius; l.s.s, island of Reil (lobule sons-sylvien, Broca); cm, cm', cm", calloso-marginal sulcus (superior arc of limbic fissure, Broca); h, hippocampal sulcus ; a. c, anterior commissure ; opt, optic nerve; r.l (fig. 4), " Pli de passage retro-limbique " (Broca); + (fig. 2), bridging convolution between frontal and parietal lobes. 4): the description of the main sulci is taken from the simpler specimen (represented in fig. 2), but applies in all essential respects to both. The olfactory lobe is separated from the cerebral hemispheres |
