Dorsal fin structure on sharks also varies. Rigid pectoral fins are a characteristic most sharks share in common. They don't fold back against the body as they do in other fish species. This sketch below is fairly representative of the species in New England. There will be some differences that will be addressed later on for the individual species.
Scientific names Explains the use of common and scientific names of sharks.
New England Sharks Tells what shark species come into our coastal New England waters. Species by month Relationship of blue, thresher, mako and porbeagle populations during different months. A whole page devoted to the Thresher , Alopias vulpinus. A whole page devoted to the Blue , Prionace glauca. Lamnidae shark family Gives characteristics of this interesting shark family.