Species identification methods are needed for small mammals. Herein, we present a simple and efficient identification key based on the hair morphology of Central African rodents (Rodentia) and shrews (Soricomorpha). A total of 1,320 museum hair samples from 51 species were analysed with an optical light microscope. One‐third (31.37%) of these samples could be identified to the species level using four morphological characters (medulla, cuticle, size and colour). The remaining species formed nine groups of two to 10 species each which could not be discriminated because of overlapping characteristics between different taxa. In addition, shrew, dormice and squirrel hair samples were clearly distinguishable from the other samples because they were either shorter (0.68 ± 0.19 cm) or longer (1.86 ± 0.3 and 1.85 ± 0.63 cm), respectively. In addition, 19 (43.18%) field‐collected samples of unknown origin were successfully identified to the level of species or group of species. Thus, to increase the efficiency of this identification key, the inclusion of more morphological characteristics (i.e. hair diameter and shape, cuticle index, cortex types) and DNA barcoding should be considered. Finally, the proposed identification key could be used as a simple and efficient tool for species inventories and ecological studies of targeted taxa in Central Africa.
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