Fishes of the Western North Atlantic 355 



mm., from Cuba (Harv. Mus. Comp. Zool., No. 35516). Male, 2,075 mm., from Cuba 

 (Harv. Mus. Comp. Zool., No. 35517). 



Snout length in front of: outer nostrils 2.5, 2.5; mouth 6.$, 6.1. 



Eye: horizontal diameter i.i, 1.2. 



Mouth: breadth 9.8, 9.3; height 4.6, 5.0. 



Nostrils: distance between inner ends 5.8, 5.8. 



Gill opening lengths: 1st 4.0, 3.25 5th 3.5, 2.8. 



First dorsal fin: vertical height 12.2, 13.2; length of base i i.o, 10.4. 



Second dorsal fin: vertical height 4.3, 4.0; length of base 3.7, 3.7. 



Anal fin: vertical height 5.4, S-5; length of base 3.7, 4.0. 



CaW^/ ^«.- upper margin 28.2, 28.3 j lower anterior margin 13.5, 14.1. 



Pectoral fin: outer margin 23.4, 22.0j inner margin 5.3, 5.25 distal margin 19.9, 



19.6. 



Distance from snout to: ist dorsal 30.8, 31.55 2nd dorsal 63.0, 62.5; upper caudal 



71.8,71.7} pectoral 22.8,23.3; pelvics 54.7,49.6. 



Interspace between: ist and 2nd dorsals 2 1.4, 20.5 j base of 2nd dorsal and caudal 



5.8, 6.O3 anal and caudal 4.1, 4.3. 



Distance from origin to origin of: pelvics to caudal pit 21.2, 21.4. 



Figure 64. A, Carcharhinus longimanus, adult female, about six feet nine inches long, off north coast of 

 Cuba, from photographs, measurements and preserved fins (Harv. Mus. Comp. Zool., No. 35516). B Em- 

 bryo about S7S mm. long taken from the above. C Anterior part of head of this same embryo. 



