| occurence | introduced | ||
| importance | Ref. | ||
| aquaculture | never/rarely | Ref. | |
| regulations | no regulations | Ref. | |
| freshwater | No | ||
| brackish | No | ||
| saltwater | Yes | ||
| live export | |||
| bait | No | ||
| game/sport | No | ||
| abundance | Ref. | ||
| comments | Critically endangered in England (Ref. 3108). Known from southern England (Ref. 124670). Known from the English Channel (Ref. 125835). C: Refs. 3108, 1314, 124670, 125835. | ||
| C = country distribution; M = map distribution; O = occurrence data; R = regional distribution | |||
| States/Provinces | |||
| States/Provinces Complete? | No | ||
| National Checklist | |||
| country information | https://www.cia.gov/library/publications/resources/the-world-factbook/geos/uk.html | ||