Yumenensis

Yumenensis is a Latinized species epithet used in the scientific names of organisms to denote origin from a place called Yumen. The epithet is formed from the place name Yumen and the Latin suffix -ensis, which means “from” or “belonging to.” In taxonomic practice, yumenensis is appended to a genus name to indicate that the described species was first found in or is otherwise associated with that locality. It is not a genus or a species by itself.

The use of -ensis as a geographic epithet is common across many taxonomic groups, so yumenensis can appear in the names of plants, animals, fungi, bacteria, and other organisms. Because many different genera can bear a species with this epithet, the name alone does not imply any close biological relationship between the organisms sharing it. The exact rationale for the epithet, including the precise type locality and the specimen on which the description is based, is recorded in the original species description.

Toponymic epithets like yumenensis reflect the practice of naming species after the location of discovery or collection, though the place of origin cited in a description may differ from current geographic understanding or administrative boundaries. In practice, the epithet is one element of a binomial name and should be interpreted together with the genus to identify the organism.