Scoloplax

High Quality Content by WIKIPEDIA articles! Scoloplax is the only genus in the catfish (order Siluriformes) family Scoloplacidae, the spiny dwarf catfishes. It includes five species, S. baskini, S. dicra, S. distolothrix, S. dolicholophia, and S. empousa. Scoloplacidae is the second-most recent family of catfish to be discovered; the first species was not described until 1976. The most recent family is Lacantuniidae, described in 2005.