| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | Lough Neagh, Northern Ireland, United Kingdom | 6723  map | 1978 or earlier | default type | four specimens collected from the shores of Lough Neagh in Northern Ireland; its original habitat is unknown. | Jones HD (1981): from Ball & Reynoldson 1981 (citation)- p. 106 | |||
| B | Isle of Man | 222  map | 1988 or earlier | Isles of Scilly and Isle of Man, England. | Jones HD (1988): 513; from Ogren & Kawakatsu 1991 (citation)- p. 79 | ||||
| C | Scilly Islands (Sillies, Isles of Scilly), United Kingdom | 2436  map | 1988 or earlier | Isles of Scilly and Isle of Man, England. | Jones HD (1988): 513; from Ogren & Kawakatsu 1991 (citation)- p. 79 | ||||
| D | Ayrshire, Scotland | 7488  map | 2017 or earlier | Wilkinson G (2017): |