| australia | new south wales | champia sp. 1lh | species | 2 | 0 |
| australia | new south wales | champia sp. 1nsw | species | 2 | 0 |
| australia | new south wales | dictyothamnion saltatum | species | 4 | 0 |
| australia | tasmania | champia sp. 2zostericola | species | 6 | 0 |
| australia | victoria | dictyothamnion saltatum | species | 1 | 0 |
| canada | british columbia | neogastroclonium subarticulatum | species | 17 | 0 |
| france | basse-normandie region | champia sp. 1parvula | species | 1 | 0 |
| france | bretagne region | champia sp. 1parvula | species | 8 | 0 |
| france | bretagne region | gastroclonium ovatum | species | 16 | 0 |
| japan | aomori prefecture | champia parvula | species | 1 | 0 |
| japan | aomori prefecture | champia sp. ms-2012-1 | species | 1 | 0 |
| japan | chiba prefecture | champia bifida | species | 1 | 0 |
| japan | chiba prefecture | champia parvula | species | 3 | 0 |
| japan | chiba prefecture | champia sp. ms-2012-1 | species | 4 | 0 |
| japan | chiba prefecture | gastroclonium pacificum | species | 4 | 0 |
| japan | ehime prefecture | champia parvula | species | 1 | 0 |
| japan | ehime prefecture | champia sp. ms-2012-1 | species | 1 | 0 |
| japan | iwate prefecture | champia lubrica | species | 2 | 0 |
| japan | iwate prefecture | champia parvula | species | 2 | 0 |
| japan | iwate prefecture | champia sp. ms-2012-1 | species | 2 | 0 |
| japan | niigata prefecture | champia sp. ms-2012-1 | species | 1 | 0 |
| japan | shizuoka prefecture | champia expansa | species | 1 | 0 |
| japan | shizuoka prefecture | champia japonica | species | 4 | 0 |
| japan | shizuoka prefecture | gastroclonium pacificum | species | 1 | 0 |
| new zealand | wellington | champia chathamensis | species | 3 | 0 |
| south korea | | champia bifida | species | 3 | 0 |
| south korea | | champia expansa | species | 1 | 0 |
| south korea | | champia inkyua | species | 6 | 0 |
| south korea | | champia lubrica | species | 1 | 0 |
| south korea | | champia recta | species | 3 | 0 |
| south korea | jeju province | champia bifida | species | 1 | 0 |
| south korea | jeju province | champia expansa | species | 1 | 0 |
| south korea | jeju province | champia lubrica | species | 1 | 0 |
| spain | | champia parvula | species | 1 | 0 |
| spain | andalusia | champia parvula | species | 1 | 0 |
| spain | asturias | gastroclonium reflexum | species | 1 | 0 |
| spain | galicia | gastroclonium reflexum | species | 2 | 0 |
| united states | california | coeloseira compressa | species | 3 | 0 |
| united states | california | gastroclonium subarticulatum | species | 1 | 0 |
| united states | california | neogastroclonium subarticulatum | species | 8 | 0 |
| united states | louisiana | champia parvula | species | 3 | 0 |
| united states | massachusetts | champia farlowii | species | 4 | 0 |
| united states | rhode island | champia farlowii | species | 3 | 0 |