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| Pustules (p) present on lorica surface. | No pustules present on lorica surface. | ||||||||||
| The anterior horizontal ridge of anteromedial facet is short relative to the other sides of the facet, giving a distinctly triangular shape (t). | The anterior horizontal ridge of anteromedial facet is about the same length as the other ridges of the facet giving a distinctly hexagonal shape. | ||||||||||
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