Peniculus (crustacean)
| Peniculus | |
|---|---|
| Peniculus hokutoae attached to its host | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Copepoda | 
| Order: | Siphonostomatoida | 
| Family: | Pennellidae | 
| Genus: | Peniculus von Nordmann, 1832 | 
Peniculus is a genus of marine copepods in the family Pennellidae. They occur worldwide and typically parasitize coastal or epipelagic fish, with the exception of Peniculus hokutoae that was found parasitizing a mesopelagic myctophid, Symbolophorus evermanni.