Fishes of the Western North Atlantic 



395 



from Colon, Panama (U.S. Nat. Mus., No. 79317). Male, 500 mm., same locality (U.S. 

 Nat. Mus., No. 79316). 



Trunk at origin of pectoral: breadth 12.4, 1 1.45 height 1 1.9, 1 1.8. 



Snout length in front of: outer nostrils 4.5, 4.35 mouth 8.9, 8.7. 



Eye: horizontal diameter 2.3, 2.1. 



Mouth: breadth 8.2, 7.9; height 5.4, 5.3. 



Figure 74. Carcharhinus forosus, immature male, about 377 mm. long, from Pernambuco, Brazil (Harv. 

 Mus. Comp. ZooL, No. 526). A Upper and lower teeth, left-hand side, about 4 x. 5 Fifth upper tooth. 

 C Ninth upper tooth. D Fourth lower tooth. E Seventh lower tooth. F Tenth lower tooth. C-F, about 7.6 x. 

 G Eighth to thirteenth lower teeth of a female, 485 mm. long, from Colon, Atlantic Panama (U. S. Nat. Mus., 

 No. 793 16), about 3 X. // Seventh lower tooth. / Tenth lower tooth of same, about 7.6 x. 



Figure 75. Carcharhinus forosus, pictured in Fig. 74. A Anterior part of head from below, about % natural 

 size. B Dermal denticles, about 50 x. C Apical view of dermal denticle, about 100 x. Z) Left nostril, about 6 x. 



