Along the sandy bottoms from Brazil to Argentina live our next Underrated Elasmobranch, the rio ray (Rioraja agassizii). Not much is known about them, but they are considered harmless to humans and vulnerable on the IUCN Red List (2007).
The largest specimen ever observed was 33.0 cm (1.08 ft). These skates are the only member within their genus, Rioraja. They are oviparous, meaning that they lay eggs. These skate eggs, unlike the horn shark's (Heterodontus francisci), take on the classic “mermaid’s purse” shape.
TFUI Founder Melissa C. Marquez is author of all animal bios and "Behind the Fins" segments.
SEE MELISSA'S TEDx TALK HERE:
SEARCH BY CATEGORIES