Prosorhochmidae
(tree size 50)
Carcinonemertidae
(tree size 25)
Raygibsonia
(tree size 1)
Atrionemertes
(tree size 1)
Albanemertes
(tree size 1)
Ommatoplea
(tree size 3)
Annulonemertes
(tree size 1)
Eumonostilifera
(tree size 427)
Cratenemertea
(tree size 30)
Acteonemertidae
(tree size 15)
Verrillianemertes
(tree size 2)
Cyanonemertes
(tree size 1)
Sanjuannemertes
(tree size 1)
Limnemertes
(tree size 1)
Quoyianemertes
(tree size 1)
Frontonemertes
(tree size 1)
Potamostoma
(tree size 1)
Protetrastemma
(tree size 1)
Satellitenemertes
(tree size 1)
Neesiidae
Poseidonemertidae