Strombidium lagenula
(tree size 61)
Apostrombidium
(tree size 2)
Buehringa
Foissneridium
(tree size 1)
Metastrombidium
(tree size 1)
Novistrombidium
(tree size 6)
Omegastrombidium
(tree size 3)
Opisthostrombidium
(tree size 2)
Parallelostrombidium
(tree size 4)
Spirostrombidium
(tree size 12)
Varistrombidium
(tree size 1)
Williophrya
(tree size 1)