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
Capitella capitata Capitella capitata is a polychaete worm that grows up to 10 cm in length. It is often blood-red in colour. The species is sedentary and fragile, with a flexible body.