Tetrastemmatidae

Tetrastemmatidae is a family of worms belonging to the order Monostilifera.

Genera
Genera:
 * Africanemertes Stiasny-Wijnhoff, 1942
 * Albanemertes Senz, 1993
 * Algonemertes Corrêa, 1954
 * Cyanophthalma Norenburg, 1986