. On the anatomy of vertebrates [electronic resource] . Horizontal section of cerebral hemispheres, Delphinus. xxxix. (Tragulus, fig. 101) and the Rock-Coney {Hyrax, fig. 96) alikemanifest the essential gyrencephalous characters in the extentto which the cerebrum (prosencephalon) covers the cerebellum,and the degree in which its surface is folded: both, likewise,. Upper surface of brain, Hyrax. Horse. Rhinoceros. Upper surface of right hemisphere. manifest the Ungulate convolutional pattern, albeit exemplifiedin the simplest measure by them in their respective brains of both Tragulu
. On the anatomy of vertebrates [electronic resource] . Horizontal section of cerebral hemispheres, Delphinus. xxxix. (Tragulus, fig. 101) and the Rock-Coney {Hyrax, fig. 96) alikemanifest the essential gyrencephalous characters in the extentto which the cerebrum (prosencephalon) covers the cerebellum,and the degree in which its surface is folded: both, likewise,. Upper surface of brain, Hyrax. Horse. Rhinoceros. Upper surface of right hemisphere. manifest the Ungulate convolutional pattern, albeit exemplifiedin the simplest measure by them in their respective brains of both Tragulus and Hyrax show the following 1 v. p. 53. PROSENCEPHALON OF MAMMALS. 121 primary fissures: ecto- and ento-rhinal, hippocampal, fig. 99, 4,sylvian, fig. 106, 5, callosal, fig. 99,7, lambdoidal, figs. 96,101,13,and entolambdoidal, fig. 99, 13, supersylvian, fig. 101, 8, andlateral or medilateral, ib. 10. In Tragulus, fig. 101, this is slightlyindicated: in Hyrax, fig. 96, 10, it is longitudinal but also shows a frontal fissure, ib. 14, and the postsylvianfissure, ib. 9. But the chief difference is seen in the course of thefissure 13, which, impressing the inner and posterior side of thehemisphere at fig. 99, 13, converges toward its fellow in Tragulus,but diverges as it advances, in Hyrax, and extends beyond thefrontal fissure, 14, simulating th
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