Q.Which of the following is an example of Class Chondrichthyes?

Step 1. Labeo, Hippocampus and Exocoetus are all standard textbook examples of the bony fish, class Osteichthyes.

Step 2. Scoliodon, the dogfish shark, is instead a cartilaginous fish, with a cartilage endoskeleton, placoid scales and no operculum — the defining features of Chondrichthyes. …

Sort each named fish into Chondrichthyes (cartilaginous) or Osteichthyes (bony) by recalling the sta …

• Assuming all fish belong to the same class — Chondrichthyes and Osteichthyes are two distinct classes with different skeletal, scale and operculum features. …