They live in the mid to upper rocky intertidal zone along the coastlines and can be found throughout the Indo-Pacific regions.

These False limpets have a ribbed shell with a brown and white coloration.

Siphonaria normalis or False 'Opihi are grazers that generally consume algae along the rocky intertidal zones.

The variety of algae consumed consists of lichens, cyanobacteria, diatoms, microalgae, and foliose macroalgae.

As our climate continues to get warmer it causes thermal stress and mortality among the Siphonaria normalis.