Morphological variation among the four Megalobrama species inferred by X‐ray photography

Morphological traits measurement still plays a key role in description, identification, classification and phylogenetics of species. However, the traditional morphological measurement method is inefficient and often destructive to the studied organism. In this study, we propose and test an X‐ray‐based technique for non‐destructive morphological studies of fish. We use this approach to attempt to discriminate four species from the genus Megalobrama on the basis of their morphometric and meristic traits. The results showed that there were significant differences (p