Cistothorus

Cistothorus is a genus of birds in the Troglodytidae family. It contains the following species:
 * Apolinar's Wren, Cistothorus apolinari
 * Mérida Wren, Cistothorus meridae
 * Marsh Wren or Long-billed Marsh Wren, Cistothorus palustris
 * Sedge Wren, Short-billed Marsh Wren or Grass Wren, Cistothorus platensis