To explain: Why would you think twice about ordering from a restaurant menu that lists the specific epithet but not the genus name of its offering.
In biological nomenclature, the second part of a species name in branched biology is called a specific epithet. Specific epithet is the specific name that is given as the second part name of the species. In binomial nomenclature, the genus name may be abbreviated, but the specific epithet cannot be abbreviated.
Biology (MindTap Course List)
Introductory Chemistry: A Foundation
Physics for Scientists and Engineers
Inquiry into Physics
Chemistry: An Atoms First Approach