Dermatobranchus semilunus
Gosliner & Fahey, 2011

Photographed by: Jeffrey Davies
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Opisthobranchia |
| Order: | Nudibranchia |
| Suborder: | Arminina |
| Family: | Arminidae |
| Species: | Dermatobranchus semilunus |
Locality:
- Philippines
- Anilao (2) Mar, Jul
- Puerto Galera (1) Apr
- Malaysia
- Malaysia (1) Oct
- Indonesia
- Lembeh (1) Jun
- Banda Islands (1) Oct
- Sangeang Island (1) Sep
- Myanmar
- Myanmar (1) Apr
- Kenya
- Watamu (1) Nov