That is not it's scientific name, but that's about all I have to go on right now.
Bulimulidae family .
Rabdotus (used to be called Bulimulus) species.
There are many species, which range in locality from northern Mexico, the mountainous southern part of Baja Calif., and in the US from Texas, north to Missouri and Kentucky, and east to Alabama. I have found them here in Kansas as well (R. dealbatus). (the snail pictured) may be R. alternata mariae from Texas...Carolina (Biological Supply co.) has sold them in the past...the brownish streaks are present in that species. To ID them with any surety, (One would) need good close-up images, both front and back sides.
Here's some info from one of my landshell references: "They live upon bushes and other vegetation, upon which they estivate, but they usually hibernate a few inches in the soil. Growth is rapid during wet weather, but of course, is wholly suspended during dry seasons.
On one occasion I visited San Antonio on April 23, finding (the snails) all dormant.
Two days of rain followed, and on April 29 I found them all in the same place active, and immature ones had added 3 to 6 mm of thin flexible shell at the lip edge. In general, the solidity of the shell is greatest in areas of low rainfall. Renewed growth often leaves a former lip-rib within, visible in the aperture.
Bulimulus shells were used by the Indians of Texas to make necklaces, like the leis of Achatinella and Partula in the Pacific Islands."