Fishes of the JVestern North Atlantic 



305 



Figure 70. Breviraja sinus-mexicanus, male, about 321 mm long, from Gulf of Mexico off Mississippi River 

 delta (U. S. Nat. Mus., No. 148275). 



long as fifth and about V5 as long as breadth of mouth. Nasal curtain more or less jagged, 

 posterior (outer) margin of nostril more or less definitely fringed. Mouth nearly straight 

 in females, more arched centrally in mature males. 



