|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | Brown Island, San Juan County, Washington, USA | 3567 
  map | Jul 1965 |  |  |  |  |  | Sopott-Ehlers B, Ax P (1985): 333 | 
| B | San Juan County Park, San Juan Island, San Juan County, Washington, United States | 3568 
  map | Jul 1965 |  |  |  |  |  | Sopott-Ehlers B, Ax P (1985): 333 | 
| C | Deadman Bay (Dead Man), San Juan Island, San Juan County, Washington, USA | 3569 
  map | Aug 1965 |  |  |  |  |  | Sopott-Ehlers B, Ax P (1985): 333 | 
| D | Lowell Point, Resurrection Bay, Kenai Peninsula, Alaska, USA | 3633 
  map | Jul 10, 1988 |  |  | fine sand | brackish | fine sand with effluent freshwater of the lower beach slope. | Ax P, Armonies W (1990): 58 | 
| E | east side Homer Spit, Resurrection Bay, Kenai Peninsula, Alaska, USA | 3639 
  map | Jul 16, 1988 |  |  | sand |  | Sandy beach behind a dune wall, abundant. | Ax P, Armonies W (1990): 58 | 
| F | Institute of Algological Research of Hokkaido University, Muroran, Hokkaido, Japan | 4215 
  map | May 22, 1975 |  |  |  |  | Die Küste Muroran vor dem Institute für Algologische Forschung (Univ,. Hokkaido) (Bezirk Iburi in Südhokkaido).  Mehrere Expl. | Tajika K-I (1982): 28 | 
| G | Habomai, Hokkaido, Japan | 4221 
  map | Aug 15, 1978 |  |  |  |  | Die Küste Habomai.  Mehrere Expl. | Tajika K-I (1982): 28 | 
| H | Nemuro, Hokkaido,  Japan | 4225 
  map | Aug 14, 1978 | type locality |  |  |  | Die Küste Nemuro (Bezirk Nemuro in Osthokkaido).  Mehrere Expl. | Tajika K-I (1982): 28 |