| Citation | 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. |
| संदर्भ | 833 Ruppert, E.E., R.S. Fox and R.D. Barnes, 2004 |
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| Named Used as Valid | Opalia longissima |
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