Fishes of the Western North Atlantic 



311 



from Florida (U.S. Nat. Mus., No. 104332). Male, 782 mm., from Florida (Amer. 

 Mus. Nat. Hist.). 



Trunk at origin of -pectoral: breadth 11.5, 12.8; height 10.8, i i.o. 



Snout length in front of: outer nostrils 2.9, 2.9; mouth 5.7, 5.3. 



Eye: horizontal diameter 2.1, 1.8. 



Mouth: breadth 8.5, 9.3; height 5.1, 5.0. 



Nostrils: distance between inner ends 5.6, 5.6. 



Gill opening lengths: ist 3.1, 4.OJ 2nd 3.2, 4.1 5 3rd 3.4, 4.1 ; 4th 3.4, 4.O; 5th 



3-3, 3-7- 



First dorsal fin: vertical height 6.6, 6.9; length of base lO.O, 10.2. 



Second dorsal fin: vertical height 5.4, 6.0; length of base 8.2, 7.8. 



Anal fin: vertical height 4.3, 5.4; length of base 6.6., 6.4. 



Caudal fin: upper margin 23.6, 24.O; lower anterior margin 12.0, 12.0. 



Pectoral fin: outer margin 15.7, 16. 2; inner margin 6.6, 6.6:, distal margin 11.5, 



I3-4- 



Distance from snout to: ist dorsal 35.1, 34.1; 2nd dorsal 61.5, 61.O; upper 



caudal 76.4, 76.0; pectoral 21.9, 21.5; pelvics 50.3, 48.O; anal 61.3, 61.O. 



Interspace between: ist and 2nd dorsals 16.7, 18.1; 2nd dorsal and caudal 6.9, 



7.OJ anal and caudal 6.6, 6.4. 



Distance from origin to origin of: pectoral and pelvics 27.0, 27.0 j pelvics and anal 



13.4, 14.4. 



Trunk moderately stout, tapering only slightly rearward, without mid-dorsal ridge. 

 Body sector from snout to cloaca about i V4 times as long as tail sector. Caudal peduncle 



rrfp^ 



Figure 53. Negafrion brevirostris. A Head of specimen pictured in Fig. 52, from below, about % natural 

 size. B Left-hand nostril, about 4.5 x. 



