Exostoma ianthinum
- kingdom: Animalia
- phylum: Chordata
- class: Ascidiacea
- order: Aplousobranchia
- family: Polycitoridae
- genus: Exostoma
- species: Exostoma ianthinum
Kelapalima- Oesapa
East Nusa Tenggara
Indonesia
Exostoma ianthinum Kelapalima Oesapa