| Polybranchia orientalis | |
|---|---|
|  | |
| A live individual of Polybranchia orientalis about 2 cm in length, head end towards the top of the image | |
| Scientific classification | |
| Kingdom: | Animalia | 
| Phylum: | Mollusca | 
| Class: | Gastropoda | 
| (unranked): | clade Heterobranchia informal group Opisthobranchia clade Sacoglossa clade Plakobranchacea | 
| Superfamily: | Limapontioidea | 
| Family: | Caliphyllidae | 
| Genus: | Polybranchia | 
| Species: | P. orientalis | 
| Binomial name | |
| Polybranchia orientalis (Kelaart, 1858) | |
| Synonyms | |
| Proctonotus orientalis Kelaart, 1858 | |
Proctonotus orientalis Kelaart, 1858
Polybranchia orientalis is a species of sacoglossan sea slug, a shell-less marine opisthobranch gastropod mollusk in the family Caliphyllidae.
This species occurs in the Indian Ocean and the Pacific Ocean.