|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | Plymouth, England (English Channel) | 255 
  map | 1913 or earlier |  | 0-28 m |  |  | among Ulven, Bryozoans. | Graff Lvon (1913): 404 | 
| B | Roscoff (Roskoff),  English Channel,  France | 258 
  map | 1913 or earlier |  | 0-28 m |  |  | among Ulven, Bryozoans. | Graff Lvon (1913): 404 | 
| C | Strait of Dover (Pas de Calais) | 2774 
  map | 1913 or earlier |  | 0-28 m |  |  | among Ulven, Bryozoans. | Graff Lvon (1913): 404 | 
| D | Trieste, Italy | 262 
  map | 1913 or earlier |  | 0-28 m |  |  | among Ulven, Bryozoans. | Graff Lvon (1913): 404 | 
| E | Lesina, Italy | 263 
  map | 1913 or earlier |  | 0-28 m |  |  | among Ulven, Bryozoans. | Graff Lvon (1913): 404 | 
| F | Villefranche Sur Mer (French Riviera), France | 259 
  map | 1905 or earlier |  |  |  |  |  | Sabussow H (1905): 488 ; [location from Louise Bush notes on literature for this species, see card or notes] | 
| G | Kastelanski Zaljev (Kastelanski Bay, Canale del Castelli, Kastel Bay, Kastelanski Zaliv), Croatia | 1331 
  map | Jun 15, 1952 |  |  |  |  | Split, abundant in the seaweed along the Kastelanski shore. | Westblad E (1955): 511 | 
| H | Kastelanski Zaljev (Kastelanski Bay, Canale del Castelli, Kastel Bay, Kastelanski Zaliv), Croatia | 1331 
  map | Jun 18, 1952 |  |  |  |  | Split, abundant in the seaweed along the Kastelanski shore. | Westblad E (1955): 511 | 
| I | Duke Rock, Plymouth Sound, United Kingdom | 4967 
  map | Aug-Sep 1892 |  |  |  |  | Duke Rock, situated in 7 fathoms at the east entrance of the Sound, forms one of a number of dredging-grounds inside the Sound..  A single specimen of this characteristic species was dredged off the Duke Rock. | Gamble FW (1893): 35-36, 44 |