Wrigleya transversaria was an active benthic whelk and probably one of the generalist predators and scavengers of the London Clay seabed. It likely moved across soft sediment searching for small prey or carrion rather than remaining fixed in one place.

Its siphonate body plan would have helped it detect chemical cues carried through the water while foraging. The precise diet is not preserved, so this lifestyle is inferred from its relationships with predatory and scavenging whelks.