plectolophe
From ZooTerms (Dictionary of Invertebrate Zoology)
plectolophe (noun; Greek plektos, twisted; lophos, crest): (Brachiopoda) A lophophore where each branchium has a U-shaped side arm with a double row of paired filamental appendages, terminating distally in a medial plano-spire normal to commissural plane with a single row of paired appendages.
