The name was coined by another German anatomist, Heinrich von Waldeyer in 1888.
The diploid number of the Chinese muntjac, Muntiacus reevesi, was found to be 46, all telocentric.
The study of karyotypes is important for cell biology and genetics, and the results may be used in evolutionary biology (karyosystematics) and medicine.
Karyotypes can be used for many purposes; such as to study chromosomal aberrations, cellular function, taxonomic relationships, and to gather information about past evolutionary events.
The existence of supernumerary or B chromosomes means that chromosome number can vary even within one interbreeding population; and aneuploids are another example, though in this case they would not be regarded as normal members of the population.
The fundamental number, FN, of a karyotype is the number of visible major chromosomal arms per set of chromosomes.