Praealticus poptaePraealticus poptae, the Marianas rockskipper, is a species of combtooth blenny found in coral reefs in the western central Pacific ocean, around the Mariana Islands. This species grows to a length of SL.EtymologyThe specific name honours the Dutch ichthyologist and curator Canna Maria Louise Popta of the Rijksmuseum van Natuurlijke Historie in Leiden.