Cirracanthus monacanthi
- kingdom: Animalia
- phylum: Arthropoda
- class: Hexanauplia
- order: Cyclopoida
- family: Taeniacanthidae
- genus: Cirracanthus
- species: Cirracanthus monacanthi
Sai Kung
Sai Kung
Hong Kong
Bunkyō-ku
Chiyoda-ku
Tokyo
Japan