Didemnum lahillei
- kingdom: Animalia
- phylum: Chordata
- class: Ascidiacea
- order: Aplousobranchia
- family: Didemnidae
- genus: Didemnum
- species: Didemnum lahillei
Albany- Belvedere
- Marin City
- Redwood City
- Richmond
- Sausalito
- Tiburon
California
United States