This is a species of non-marine mollusc found in South Africa only.

[1] A. nebulosa serves as the first intermediate host for a parasite, the brachylaimid trematode Renylaima capensis.

[1] Branched, cercariogenous sporocysts of this parasite massively develop in A.

[1] These sporocysts are attached to the hepatopancreas, body wall, pallial floor and even to the genital system.

[1] This fluke is highly specific at the first intermediate host level.