| เลขที่อ้างอิง | การเขียนคำอธิบาย | ปี | ชื่อที่ใช้ | หน้า |
|---|---|---|---|---|
| 844 | Debelius, H. 2001 Nudibranchs and sea snails: Indo-Pacific field guide. Unterwasserarchiv, IKAN, frankfurt, Germany, 3rd ed. 321 pp. | 2001 | Halgera iota | 255 |
| 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 | Halgerda iota | --> |
| 909 | Anonymous 2006 Opisthobranchia from around the world. http://www.medslugs.de/Opi/Opi_alpha.htm | 2006 | Halgerda iota | --> |
| 914 | McDonald, G. 2006 Zoological Record Nudibranchia. http://www.seaslug.com/zoorec.html | 2006 | Halgerda iota | --> |