| Similarity | Rank | |
|---|---|---|
| 1899a | 0.932 | 92689 |
| koehler | 0.913 | 35559 |
| enopla | 0.903 | 62785 |
| 1896c | 0.900 | 98425 |
| ophioprium | 0.898 | 61525 |
| ophiomitrella | 0.896 | 73851 |
| verrill | 0.880 | 45082 |
| ophiotrema | 0.874 | 80263 |
| ophiolebes | 0.873 | 73857 |
| 1933a | 0.873 | 67240 |
| rosea | 0.864 | 48020 |
| amphiura | 0.864 | 76242 |
| ljungman | 0.862 | 76174 |
| var. | 0.858 | 74009 |
| mortensen | 0.858 | 40486 |
| ophiura | 0.856 | 74006 |
| abyssicola | 0.854 | 68658 |
| ophiotoma | 0.852 | 76109 |
| ovina | 0.842 | 65054 |
| retecta | 0.838 | 92747 |
| stolonifera | 0.838 | 76974 |
| carex | 0.837 | 43713 |
| lyman | 0.837 | 28347 |
| sub-community | 0.832 | 36626 |
| subfamily | 0.832 | 35923 |