Periproct
The periproct is the final body segment in annelid worms. The anus is located on this segment.[1] The term also refers to the small region surrounding the anus of the sea urchin.[2]
The periproct is the final body segment in annelid worms. The anus is located on this segment.[1] The term also refers to the small region surrounding the anus of the sea urchin.[2]
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