| Country | Year | Collector | Identifier | Catalog No. | Depth (m) | Locality | Source |
| Easter Island | no year | USNM | SLB | ||||
| Easter Island | no year | S. Englert | CAS | SLB | |||
| Easter Island | 1917 | K. Backstrom | GM | Hanga Piko. | SLB | ||
| Easter Island | 1968 | P. C. McCoy | ASNP | SLB | |||
| Easter Island | 1968 | H. G. Richards and D. L. Govoni | ANSP | SLB |
