Not much is known about the daily interactions in the life of Allogona townsendiana. But interactions between it and it's close relative ,which it is most likely to be confused with, the Idaho Forestsnail (Allogona ptychophora) are a subject with a little research. A. ptychophora is very similar but the shell is slightly smaller and has more clearly developed axial riblets (Forsyth et al 2002). Some examples of interactions with habitat include A. townsendiana's preference for herbaceous vegetation, especially stinging nettle and
sword fern communities found in association with bigleaf maple, salmonberry and red alder (Conservation Concern, 2010). Predatory interactions are probably the most common interaction of A. townsendiana. Predation constitutes a significant source of mortality of A. townsendiana (Forsyth et al 2002). A wide variety of mammals, birds, amphibians, reptiles and invertebrates prey on and snails like A. townsendiana, even other snails.  Carnivorous snails of the British Columbia habitat include several widespread and abundant native forest species (Haplotrema vancouverense, Ancotrema sportella and A. hybridum) (Forsyth et al 2002). Numerous exotic species may also pose a problem for native land snails through predation or competition for resources. Certain exotic slugs (such as Arion rufus and Deroceras reticulatum) reach very high densities in localized areas and may potentially compete with A. townsendiana for food and other resources (Cameron 1986 in Forsyth et al 2002).