Any of various sporozoan protozoans of the order Gregarinida that are parasitic within the digestive tracts of various invertebrates including arthropods and annelids.

 
  • 簇虫任一种簇虫孢子虫类的原生动物,寄生于各类无脊椎动物,包括节肢动物和环节动物的消化道内
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