Genus Notomys refers to a group of rodents that are commonly known as the spinifex hopping mice. These small, desert-dwelling rodents are found in parts of Australia and are known for their unique adaptation to their arid habitats. While there are no commonly used synonyms for the word "genus Notomys," these mice are occasionally referred to by their common name, the spinifex hopping mouse. Other, less common synonyms for these rodents include the western hopping mouse and the sandy inland mouse. However, it is important to note that these names are not widely recognized or used within the scientific community.