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The topography and geology of the Fayum province of Egypt

Note 55 — PART III.

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T. pharaonica, Cossmann. A new species; apparently this is the form quoted by Blanckenhorn and Mayer-Eymar as T. angulata. According to Cossmann, however, T. pharaonica differs from T. angulata in several particulars, especially in being more thickset.

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