Fishes of the Western North Atlantic 



303 



Figure 69. Breviraja sinus-mexicanus, female, 228 mm long, from off Pensacola, Florida (U. S. Nat. Mus., 

 No. 103376, type). A Lower side of anterior part of head. B Ventral view of pelvics and base of tail. C Left-hand 

 nostril, about \\y,. D Margin of right-hand nasal curtain, about 9.2 X. E Upper teeth, about 23 x. 



Gill Openings: lengths, ist 0.9, 1.2; 3rd 0.9, 1.2; 5th 0.8, 0.6; distance between 



inner ends, ist ii.o, 10. o; 5th 6.2, 5.0. 

 First dorsal fin: vertical height 1.3, 1.6; length of base 3.5, 3.7. 

 Second dorsal fin: vertical height 1.3, 1.6; length of base 2.6, 3.7. 

 Pelvics: anterior margin 10.5, 10.3. 

 Distance: from tip of snout to center of cloaca 32.9, 2S-S'^ from center of cloaca 



