. On the anatomy of vertebrates [electronic resource] . Skull of Bat (Phyllostoma). has the angle usually produced, fig. 254, A. The malleus andincus are united; the crura of the stapes are long and slender. The skull of the Mole (Talpa, fig. 255) is subdepressed,pyriform, large be-hind, tapering to thefore-part, which isprolonged by theprenasal ossicle, outer surfaceof the cranium issmooth and devoidof crests : it is re-markable for theextension of thesuperoccipital uponits upper part, andfor the expandedmastoids. The very slender zygomata show no distinct malarbones. The petrosal is la
. On the anatomy of vertebrates [electronic resource] . Skull of Bat (Phyllostoma). has the angle usually produced, fig. 254, A. The malleus andincus are united; the crura of the stapes are long and slender. The skull of the Mole (Talpa, fig. 255) is subdepressed,pyriform, large be-hind, tapering to thefore-part, which isprolonged by theprenasal ossicle, outer surfaceof the cranium issmooth and devoidof crests : it is re-markable for theextension of thesuperoccipital uponits upper part, andfor the expandedmastoids. The very slender zygomata show no distinct malarbones. The petrosal is largely and deeply excavated by thecerebellar fossa. The rhi-nencephalic fossa is largeand well defined. The basi-occipital and basisphenoidare thick and of a finespongy texture. The orbitis no way defined from thetemporal fossa: the antor-bital foramen is large. Inthe Cape Mole ( Chrysochlo-ris) the cranium resemblesthat of the bird in its thinsmooth convex walls, itsgreat transverse and verti-cal diameters, its allocationat the back of the skull, andb
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Keywords: ., bookcentury1800, booksubject, booksubjectbirds, booksubjectfishes
