| Citation | Calder, D.R., J.T. Carlton and H.H. Choong, 2014 Clava multicornis (Forsskål, 1775): rediscovery of a North Atlantic hydroid (Cnidaria, Hydrozoa, Anthoathecata) on the Pacific coast of North America. BioInvasions Record 3(2):71-76. |
| Ref. | 121802 Calder, D.R., J.T. Carlton and H.H. Choong, 2014 |
| Page | 74 |
| Named Used as Valid | Mesocentrotus franciscanus |
| Locality | |
| Distribution | Pacific. |