In hermaphroditic helminth parasites. infrapopulation size or mating group size mostly affects some processes acting within the infrapopulation. Here. 30 natural infrapopulations (12-154 individuals) of the intestinal trematode Gyliauchen volubilis Nagaty. https://www.ealisboa.com/limited-stock-Purple-House-Arrethe-Bush-Balm-Soap-quick-super/