This was the abundant small snail on the rocks of the South Padre Island jetty. Most of these snails were on the order of 4 to 8mm long. My references* suggest the proper name for Texas material is L. lineolata rather than L. ziczac.

• Andrews, J. 1981. Texas Shells, A Field Guide. Univ. of Texas Press, Austin. (republished by Texas Monthly in 1992)