Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Chondrichthyes
- Order
- Myliobatiformes
- Family
- Gymnuridae
- Genus
- Gymnura
- Species
- marmorata
Habitat
This ray inhabits shallow coastal waters, bays, and estuaries with sandy or muddy bottoms. It is commonly found along the Pacific coast from southern California to Peru, preferring depths up to 50 meters. They often bury themselves in the substrate to ambush prey.
Diet
The California butterfly ray primarily feeds on bottom-dwelling invertebrates such as crabs, shrimp, and clams, as well as small fish. It uses its broad mouth to suck up prey from the sediment, typically foraging at night or during low light conditions. Feeding behavior involves lying in wait on the ocean floor before striking.
Behavior
California butterfly rays are mostly solitary but may form loose groups in favorable habitats. They are nocturnal, spending the day buried in sand and becoming active at night to hunt. They exhibit territorial behavior when feeding and can make quick, flapping movements with their wings to escape threats.
Conservation Status
Listed as Least Concern by IUCN.