Lesser spiny eel
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Synbranchiformes
- family: Mastacembelidae
- genus: Macrognathus
- species: Macrognathus aculeatus
Cox’s Bāzār
Chittagong
Bangladesh
Hyderabad
Andhra Pradesh- Bara Bazar
- Kolkata
West Bengal
India
Barabai
South Kalimantan
Indonesia