 The pectoral fins are falcate (sickle-shaped) and taper to pointed tips; their leading margins measure about a fifth as long as the total length in sharks over long.The first dorsal fin is high and broad, with a pointed apex and a concave trailing margin; its origin lies roughly over the insertion (the rear of the fin base) of the pectoral fins.The second dorsal fin is relatively large and located about opposite the anal fin, which is about of equal size.