Haitia (Physa) natricina Taylor, 1988 The Snake River physa snail, scientific name Physella natricina, is a species of freshwater snail, an aquatic gastropod mollusk in the family Physidae.

This snail is believed to be confined to the Snake River, inhabiting areas of swift current on the undersides of large cobbles and boulder-sized rocks.

Fish and Wildlife Service reported the known modern range of the species to be from Grandview, Idaho (ca.

It is thought that the species may have existed in the Snake River since approximately 3.5 million years ago.

The Snake River physa is rare, with fewer than 50 total individuals having been collected.