Aporrhais sowerbii constrictus was a larger, more slender pelican’s-foot snail living on the muddy London Clay sea floor. The animal could crawl and partly burrow through soft sediment, while the expanded lip of the mature shell helped steady it at the sediment surface.

Like other aporrhaids, it was probably a detritus feeder that used ciliary currents and its proboscis to gather fine organic material rather than hunting large prey. This made it part of the seabed recycling community, processing material that settled from the productive water column above.