. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 442 the "calcarine fissure" is merely the involution of the whole stria- bearing cortex. If the lips of the fossa striata be drawn apart in the fresh brain of almost any of the Apes, the condition represented in Figure 7 will be exposed. The area striata is a broad, fiat, deeply depressed area, whereas the gyrus fornicatus, which is partly submerged in the anterior s. call. marg. s. lim. praecunei foss. par. occ. s. i. ui. (r. d.). foss. str. occ. s. collat. s. lini. inf. ar. sti". s. lim. anterior areae striat
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 442 the "calcarine fissure" is merely the involution of the whole stria- bearing cortex. If the lips of the fossa striata be drawn apart in the fresh brain of almost any of the Apes, the condition represented in Figure 7 will be exposed. The area striata is a broad, fiat, deeply depressed area, whereas the gyrus fornicatus, which is partly submerged in the anterior s. call. marg. s. lim. praecunei foss. par. occ. s. i. ui. (r. d.). foss. str. occ. s. collat. s. lini. inf. ar. sti". s. lim. anterior areae striatae Fig. 7. The mesial aspect of the right occipital region of a Cercopithcciis aethiops, in which the lips of the fossa striata and of the fossa parieto-occiiiitalis have been drawn apart. The dotted lines represent the edges of the lips. s. lim. anterior areae striatae =? sulcus occipitalis, praestriatus = sulcus calcarinus proprius hominum. s. i. m. (r. d.) = ramus dorsalis of the fossa striata =^ so-called "fissura calcarina". part of the fossa, is a prominent vertical column. Between these two regions there is a slight vertical furrow, because the adjacent parts of the area striata and the gyrus fornicatus are placed at right angles the one to the other: in some cases, however, there is no distinct angle between the two surfaces. If a horizontal section be made through the fossa striata the vertical furrow (when present) will be found to coincide exactly with the anterior edge of the stria Gennari; to be, in fact, a sulcus limitans anterior areae striatae or, to use a less ponderous name, a sulcus praestriatus. It is, however, hardly a true sulcus, for at most it is a shallow open furrow. It is almost. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Anatomische Gesellschaft. Jena : G. Fischer
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