| china | | heterocapsa sp. | species | 2 | 0 |
| denmark | central denmark region | heterocapsa rotundata | species | 530 | 0 |
| germany | | heterocapsa triquetra | species | 18 | 0 |
| hong kong | | heterocapsa sp. | species | 1 | 0 |
| italy | | heterocapsa pygmaea | species | 1 | 0 |
| japan | | heterocapsa circularisquama | species | 1 | 0 |
| japan | fukui prefecture | heterocapsa circularisquama | species | 3 | 0 |
| japan | fukui prefecture | heterocapsa illdefina | species | 1 | 0 |
| japan | hiroshima prefecture | heterocapsa sp. fk6-d47 | species | 1 | 0 |
| japan | mie prefecture | heterocapsa circularisquama | species | 16 | 0 |
| japan | nagasaki prefecture | heterocapsa sp. nies-473 | species | 1 | 0 |
| japan | niigata prefecture | heterocapsa sp. nies-472 | species | 1 | 0 |
| japan | okinawa prefecture | heterocapsa sp. nies-614 | species | 1 | 0 |
| japan | osaka prefecture | heterocapsa triquetra | species | 1 | 0 |
| japan | tokyo prefecture | heterocapsa sp. tk6-d57 | species | 1 | 0 |
| new zealand | marlborough | heterocapsa minima | species | 1 | 0 |
| panama | kuna yala province | heterocapsa sp. jn120.1 | species | 1 | 0 |
| puerto rico | | heterocapsa sp. | species | 2 | 0 |
| qatar | | heterocapsa sp. | species | 7 | 0 |
| south africa | kwazulu-natal province | heterocapsa orientalis | species | 1 | 0 |
| spain | | heterocapsa sp. he04 | species | 1 | 0 |
| united states | | heterocapsa rotundata | species | 1 | 0 |
| united states | | heterocapsa triquetra | species | 1 | 0 |
| united states | california | heterocapsa niei | species | 1 | 0 |
| united states | hawaii | heterocapsa sp. pdam3n | species | 1 | 0 |
| united states | maine | heterocapsa sp. ccmp450 | species | 1 | 0 |
| united states | maryland | heterocapsa triquetra | species | 1 | 0 |
| united states | massachusetts | heterocapsa triquetra | species | 2 | 0 |
| united states | texas | heterocapsa pygmaea | species | 1 | 0 |
| vietnam | thua thien-hue province | heterocapsa huensis | species | 2 | 0 |