Features of Scoliodon (Dogfish)
Long, laterally compressed spindle shaped body tapering at both ends. 30 to 60 cm in length.Body surface is rough due to backwardly directed spines of placoid scales embedded in the…
Pisces (Superclass)
These are true, jawed vertebrates with specific organs for respiration, excretion and blood circulation. The organisms belonging to this class are poikilotherms, meaning that they cannot regulate their own body…