There are currently a total of 2 Pokémon in the Sandshrew (Alola Form) family. Sandshrew (Alola Form) evolves into Sandslash (Alola Form) which costs 50 Candy.
There is a very low chance that you can get a shiny Sandshrew - Alola Form, which has the following appearance:
About
"Sandshrew's body is configured to absorb water without waste, enabling it to survive in an arid desert. This Pokémon curls up to protect itself from its enemies."