| Referentienummer | Beschrijving | Jaar | Gebruikte naam | Pagina |
|---|---|---|---|---|
| 479 | Base de dados tropical 2003 Invertebrados marinhos registrados no litoral brasileiro. Echinodermata recentes e fόsseies do Brasil. http://www.bdt.fat.org.br/first | 2003 | Psolus marcusi | --> |
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. Brooks/Cole, Thomson Learning learning, Inc. 990 p. | 2004 | Psolus marcusi | --> |