Children (25 direct children, 28 direct and indirect children):
Mesodon thyroidus
Mesodon andrewsae
Mesodon normalis
Mesodon trossulus
Mesodon clausus
(tree size 2)
Mesodon altivagus
Mesodon mitchellianus
Mesodon zaletus
Mesodon elevatus
Mesodon sanus
Mesodon archeri
Archer's toothed land snail
Mesodon clenchi
Mission creek oregonian
Mesodon jonesianus
Jones' middle-toothed land snail
Mesodon albolabris
Mesodon burringtoni
Mesodon columbiana
Mesodon exoleta
Mesodon kalmianus
Mesodon leatherwoodi
Mesodon megasoma
(tree size 1)
Mesodon multilineata
Mesodon orestes
Mesodon panselenus
Mesodon ptychophorus
Mesodon townsendiana