Costasiella usagi
Ichikawa, 1993
Photographed by: Anouk Houben
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Opisthobranchia |
| Order: | Sacoglossa |
| Family: | Costasiellidae |
| Species: | Costasiella usagi |
Locality:
- Indonesia
- Bali (4) Jul, Nov, Dec
- Manado (1) Nov
- Rinca Island (1) Dec
- Lembeh (1) Apr
- Flores (1) Sep
- Malaysia
- Perhentian (2) May, Sep
- Philippines
- Thailand
- Koh Phangan (1) Sep
- India
- Andaman & Nicobar Islands (1) Feb
- Nthn. Mariana Islands
- Saipan (1) Feb
- Guam
- Guam (1) Nov
