|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | Ekenas (Ekenäs, Tammisaari, Tammisari), Finland | 2932 
  map | Jul 1, 1944 | default type | 25 m | sand, clay, gytta | 3.68 ppt | south of Järnön. | Luther A (1960): 89 | 
| B | Tvärminne (Tvarminne), Finnish Bay, Finland | 2842 
  map | Jul 1, 1947 | default type |  | sand, gytta |  | between Sundholmen and Brännskär. | Luther A (1960): 89 | 
| C | Sundholmen, Stockholms Lan, Sweden | 3026 
  map | Aug 8, 1959 |  | 14 m | fine sand, gytta |  | southeast end Sundholmen.  Karling. | Luther A (1960): 89 | 
| D | Jarno (Jarnon, Järnön, Jernon, Ierno), Finland | 3042 
  map | Jan 7, 1944 | default type | 24 m | Sand, Loam, Gyttja |  | Finnish Bay, south of Järnon and north of entry to Ekenäs (Station III Purasjoki 1945) | Luther A (1947): 29; location described in Purasjoki 1945 (citation) | 
| E | Ekenas (Ekenäs, Tammisaari, Tammisari), Finland | 2932 
  map | Jan 7, 1944 | default type | 24 m | Sand, Loam, Gyttja |  | Finnish Bay, south of Järnon and north of entry to Ekenäs (Station III Purasjoki 1945) | Luther A (1947): 29; location described in Purasjoki 1945 (citation) | 
| F | Station 2, south Grindöy (Grindoy, Store Grindoya), sand beach areas of Tromsø (Tromso), Norway | 3233 
  map | Aug 1970 |  |  |  |  |  | Schmidt P (1972): 26 | 
| G | Kiel Bay (Kieler Bucht, Kieler Bay,  Kielerbugt,  Nisler Bach), Germany | 298 
  map | Apr 1971 |  |  |  |  |  | Schmidt P (1972): 16-17 | 
| H | Nielönn, north of Kampen, Sylt Island, Germany, North Sea | 3613 
  map | 1982-1983 |  |  |  |  | salt meadow. | Armonies W (1987): 96 | 
| I | Raantem Inge, Rantum, Sylt Island, Germany, North Sea | 3614 
  map | 1982-1983 |  |  |  |  | salt meadow. | Armonies W (1987): 96 | 
| J | Koenigs Bay (Koenigshafens, Konigshafen, Königshafen), Sylt Island, Germany, North Sea | 3620 
  map | Jun 1983 |  |  | medium sand |  | Königshaften.  Zwei Sandufer eines Salzwiesenpriels, -5 bis + 30 cm, Mittelsand.  a) strömungsgeschützt | Hellwig M (1987): 173 | 
| K | site south of Keitum, Germany | 3615 
  map | 1982-1983 |  |  | sand |  |  | Hellwig M (1987): 173 | 
| L | Hornum-Ost (Hörnum, Hoernum), Sylt Island, Germany | 3617 
  map | Sep 1981 |  |  | medium-coarse sand |  | Hörnum, Nehrungshaken und Lagune.  Spartina auf Mittel- bis Grobsand, -15 bis + 30 cm, 8 x 10 cm2. | Hellwig M (1987): 173 |