* Taxonomists: These scientists study the classification of organisms, grouping them into taxa based on shared characteristics.
* Systematists: This term is often used interchangeably with taxonomist, but it can also refer to scientists who study the evolutionary relationships between organisms, which informs their classification.
* Classifiers: This is a broader term that can be applied to any scientist who studies classification systems, regardless of the subject matter. For example, a scientist who classifies stars would be a classifier.
So, depending on the context, you could refer to them as taxonomists, systematists, or classifiers.