Hyaloraphidium contortum is a fungus-like protist belonging to the phylum Aphelida. It features elongated, cylindrical cells ranging from 10 to 20 micrometers in length, each surrounded by a cellulose cell wall. The organism is multinucleate and possesses two flagella of unequal length, used for movement and prey capture. Hyaloraphidium contortum is heterotrophic, feeding on bacteria, and reproduces asexually through binary fission. It inhabits freshwater environments, typically found in association with decaying organic matter or sediment. This protist contributes to nutrient cycling by consuming bacteria in microbial communities.