| Kutipan | 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. |
| Acuan | 833 Ruppert, E.E., R.S. Fox and R.D. Barnes, 2004 |
| Halaman | |
| Bernama Digunakan sebagai Valid | Opalia crenata |
| Lokalitas | |
| Penyebaran |