| Name | Hormoceras Kützing |
| Authorship | Kützing |
| Rank | Genus |
| Placed in | Ceramiaceae |
| Contains | Hormoceras acrocarpum Kützing Hormoceras sp. |
| Remarks | LT.: H. diaphanum (Lightfoot) Kützing (Conferva diaphana Lightfoot) (vide Nakamura, Sci. Pap. Inst. Algol. Res. Fac. Sci. Hokkaido Imp. Univ. 3: 155. 1950) |
| Citation | 1842 [Feb-Mar 1842] Linnaea 15(6): 730 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Hormoceras Kützing |
| Identification made in | [no date] (1) |