P. mystaceus may refer to:
- Phidippus mystaceus, a species in the genus Phidippus
- Phrynocephalus mystaceus, a species in the genus Phrynocephalus
- Platyrinchus mystaceus, a species in the genus Platyrinchus
- Proagonistes mystaceus, a species in the genus Proagonistes
Topics referred to by the same termThis disambiguation page lists articles associated with the same abbreviated species scientific name.
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