Chuniellidae
(tree size 10)
Pelagonemertidae
(tree size 38)
Armaueriidae
(tree size 19)
Planktonemertidae
(tree size 18)
Protopelagonemertidae
(tree size 11)
Dinonemertidae
(tree size 22)
Bathynemertes
(tree size 1)
Nectonemertidae
(tree size 10)
Balaenanemertidae
(tree size 10)
Pachynemertidae
(tree size 3)
Buergeriellidae
(tree size 3)
Archipelagica
Eupelagica