Chondrichthyes
Chondrichthyes (/kɒnˈdrɪkθᵻ.iːz/; from Greek χονδρ- chondr- 'cartilage', ἰχθύς ichthys 'fish') is a class that contains the cartilaginous fishes: they are jawed vertebrates with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone. The class is divided into two subclasses: Elasmobranchii (sharks, rays, skates, and sawfish) and Holocephali (chimaeras, sometimes called ghost sharks, which are sometimes separated into their own class).
Within the infraphylum Gnathostomata, cartilaginous fishes are distinct from all other jawed vertebrates, the extant members of which all fall into Teleostomi.
Fish Marine biology Animal Biology Stingray Rays and skates Manta ray Cartilaginous fish Sea
Thank you Uneek for the beautiful underwater landscape! I added a few cownose rays there.
Curious shark
Face Fish Jaw Mouth Organism Skull Marine biology Cartilaginous fish Tooth Computer wallpaper