Lagoon Sea Slug (Tenellia adspersa)

Key Details

Taxonomic Groups: Invertebrate > mollusc > Mollusc (marine)
Red List Status: (Not Relevant) [(not listed)(nr)]
D5 Status:
Section 41 Status: (not listed)
Taxa Included Synonym: (none)
UKSI Recommended Name: Tenellia adspersa
UKSI Recommended Authority: (Nordmann, 1845)
UKSI Recommended Qualifier: (none specified)
Red List Citation: (not listed)
Notes on taxonomy/listing: (none)

Criteria

Question 1: Does species need conservation or recovery in England?
Response: Yes
Justification: The species is known from Scotland and England. The English populations are rare and populations reputed to be ephemeral so its difficult to gauge its current status. It does require non-tidal brackish pools and so their retention in areas potentially supporting the species are important.
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: No
Justification: Protection and maintenance of the general habitat known to support the species in England is required. Due to the difficulty in locating this species, no actions are recommended at this time.
Question 3: At a landscape scale, would the species benefit from untargeted habitat management to increase habitat mosaics, structural diversity, or particular successional stages?
Response: No
Justification: This species would not benefit from untargeted management

Species Assessment

Not relevant as no Key Actions defined.

Key Actions

No Key Actions Defined

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Acknowledgment:
Data used on this website are adapted from Threatened species recovery actions 2025 baseline (JP065): Technical report and spreadsheet user guide (Natural England, 2025). Available here.