so ambystoma can also called mole salamander

Yes, that's correct. Members of the genus Ambystoma are commonly referred to as mole salamanders. This name derives from their relatively stout bodies and the way they "mole" or burrow through soil. Mole salamanders are a subset of North American lungless salamanders and have distinctive characteristics shared among species within Ambystoma:

• Burrowing Habits: They often spend time beneath the soil surface or in damp leaf litter, emerging periodically to feed or reproduce.
• Different Life Stages: Most Ambystoma species undergo metamorphosis, beginning life as aquatic larvae with gills and transforming into terrestrial adults that breathe through lungs—except for the Mexican axolotl, which is neotenic and retains its larval features throughout adulthood.
• Reproduction Behavior: Mole salamanders typically return to water to reproduce, laying eggs in masses or strings and guarding them.

Thus, when someone refers to a mole salamander, they generally mean a member of Ambystoma. However, it's good to keep in mind that mole salamanders are not exclusive to Ambystoma because other genera can also have similar habits and characteristics.