|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | Miramar Beach, Guaymas, Sonora, Mexico | 1750 
  map | Feb 9, 1948 | default type |  | rock |  | collected by the MacGinities on a rocky shore. | Hyman LH (1953): 307 | 
| B | Point Fermin, San Pedro, California, USA | 2007 
  map | Dec, 1950 | default type |  |  |  | collected by Reish from Cladophora masses. | Hyman LH (1953): 307 | 
| C | White Cove, Catalina Island, California, USA | 2006 
  map | Jul 12, 1941 | default type |  | kelp holdfasts |  | collected by the Allan Hancock Foundation. | Hyman LH (1953): 307 | 
| D | White Cove, Catalina Island, California, USA | 2006 
  map | Aug 4, 1941 | default type |  | kelp holdfasts |  | collected by the Allan Hancock Foundation. | Hyman LH (1953): 307 | 
| E | Point Fermin, San Pedro, California, USA | 2007 
  map | Jan, 1951 | default type |  |  |  | collected by Reish from Cladophora masses. | Hyman LH (1953): 307 | 
| F | Point Fermin, San Pedro, California, USA | 2007 
  map | Feb, 1951 | default type |  |  |  | collected by Reish from Cladophora masses. | Hyman LH (1953): 307 | 
| G | Newport Bay, California, USA | 1983 
  map | Dec 17, 1941 | default type | intertidal |  |  | collected by the Allan Hancock Foundation. | Hyman LH (1953): 307 | 
| H | Newport Bay, California, USA | 1983 
  map | Feb 13, 1942 | default type | intertidal |  |  | collected by the Allan Hancock Foundation. | Hyman LH (1953): 307 | 
| I | Playa Cristal, northeast Neguange Bay, Tayrona National Park, Santa Marta, Colombia | 7081 
  map | 2004 or earlier |  | littoral | rocky |  |  | Quiroga SY (2008): 13; and Quiroga et al. 2004 (citation)- p. 10 |