This species has a long slender body, a plain grey/brown
dorsum, pale/white
ventrum and a large and rounded
dorsal fin. The fins have a pale to white trailing margin fading towards adulthood. The
caudal fin is deeply
notched; its teeth are flat and pale. This type of shark can be found in the
continental shelf between depths of . The maximum recorded size was . Mustelus sinusmexicanus head NOAA.jpg|Head Mustelus sinusmexicanus jaws.jpg|Jaws Mustelus sinusmexicanus upper teeth.jpg|Upper teeth Mustelus sinusmexicanus lower teeth.jpg|Lower teeth ==References==