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
Salvatoria pilkena Salvatoria pilkena is a species belonging to the phylum Annelida, a group known as the segmented worms. The species name comes from an Aboriginal word, "pilkena", meaning "different", due to its characteristic features. "Salvatoria pilkena" belongs to a reduced group of species that possess rugose dorsal cirri, contrary to the typical spindle-shaped cirri found in its genus. It also lacks dorsal cirri on chaetiger 2. It resembles "Salvatoria swedmarki" and "S. celiae", differing from "pilkena" in that the latter has significantly longer proventricles, while its compound chaetae are short and unidentate. At the same time, "S. opisthodentata" has a similar body and compound chaetae but appears to possess dorsal cirri on its chaetiger 2.