| Citation | Schoch, G.C. and M. Dethier, 2001 The intertidal biota of Puget Sound gravel beaches. Report for the Washington State Department of Natural Resources Nearshore Habitat Program, 48p. |
| Ref. | 94854 Schoch, G.C. and M. Dethier, 2001 |
| Page | 32 |
| Named Used as Valid | Mediomastus californiensis |
| Locality | |
| Distribution | Puget Sound. |