|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | Japan (Nippon, Yaponiya, Nihon, Japon, Giappone) | 4046 
  map | 1918 or earlier | default type |  |  |  |  | Yeri M, Kaburaki T (1918): abstract | 
| B | Mitsui Institute of Marine Biology, Susaki near Simoda, Siduoka Prefecture, Japan | 4428 
  map | May-Jun 1936 |  |  |  |  | 5 specimens collected. | Kato K (1937): 220 | 
| C | Biological Station Misaki, Japan | 1148 
  map | 1944 or earlier |  |  |  |  |  | Kato K (1944): 284 | 
| D | Susaki near Simoda, Siduoka Prefecture, Japan | 4443 
  map | 1944 or earlier |  |  |  |  |  | Kato K (1944): 284 | 
| E | Shirahama-ko (Sirahama Ko), Province of Awa (southern part of Chiba Prefecture), Japan | 4427 
  map | 1944 or earlier |  |  |  |  |  | Kato K (1944): 284 |