Which type of large intestine worm was primarily studied by Ivan Mackerie?
Mongolian death worm The Mongolian death worm (Mongolian: олгой-хорхой , olgoi-khorkhoi, "large intestine worm") is a creature
Macrostomum Macrostomum is a genus of Platyhelminthes with a distribution, with over a hundred species described to date. These hermaphroditic, flatworms are usually small in size, with large species reaching up to 5 mm in body length (e.g. "Macrostomum tuba"). They are usually transparent, and the smaller species appear rather round in cross-section than dorsoventrally flattened.