| 11. | Confederate stamps were generally issued imperforate to be manually cut.
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| 12. | Triloculinella is a Miliolacean miliolids, is calcareous, imperforate, porcelaneous.
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| 13. | (Original description ) The solid shell is imperforate and acuminately fusiform.
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| 14. | Hymenotomy is the surgical perforation of an imperforate hymen.
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| 15. | Like all U . S . stamps until 1857, they were imperforate.
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| 16. | The most common gastrointestinal problems include constipation from imperforated anuses and gastroesophageal reflux.
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| 17. | The solid, imperforate shell has a conic shape.
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| 18. | It is the commoner imperforate species of Florida, often collected by tourists.
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| 19. | They have imperforated stapes and no inner mandibular teeth.
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| 20. | All of these early stamps were imperforate issues.
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