| Name | Echinothamnion Kylin |
| Authorship | Kylin |
| Rank | Genus |
| Placed in | Rhodomelaceae |
| Contains | Echinothamnion sp. |
| Remarks | Type: E. hystrix (Hooker f. & Harvey) Kylin (Polysiphonia hystrix Hooker f. & Harvey) |
| Citation | 1956 Gatt. Rhodophyc. 506 |
| Name | Echinothamnion Kylin |
| Authorship | Kylin |
| Rank | Genus |
| Placed in | Rhodomelaceae |
| Contains | Echinothamnion sp. |
| Remarks | Type: E. hystrix (Hooker f. & Harvey) Kylin (Polysiphonia hystrix Hooker f. & Harvey) |
| Citation | 1956 Gatt. Rhodophyc. 506 |