Word: semisulcospira
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Dates: during 1950-1959
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...1890s. Some of the specimens arrived alive, making it possible to study their anatomy for the first time, and they have found Washington's alien climate so attractive that they have already begun to reproduce themselves. Old's prize find: a stream-bed that was paved with Semisulcospira amurensis, a carrier of the lung-fluke larva which causes a disease with symptoms often confused with those of tuberculosis...
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