Ptychodera

Ptychodera is a genus of acorn worm.

Species

 * Ptychodera bahamensis Spengel, 1893
 * Ptychodera ceylonica author unknown
 * Ptychodera erythrea Spengel
 * Ptychodera flava Eschscholtz, 1825
 * Ptychodera pelsarti Dakin, 1916