Belly pipefish
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Syngnathiformes
- family: Syngnathidae
- genus: Hippichthys
- species: Hippichthys heptagonus
- Port Blair
Andaman and Nicobar- Elūr
Kerala
India- Jayapura
Papua
Indonesia- Madang
Madang
Papua New Guinea