Fishes of the Western North Atlantic 133 



Doubtful References: 



Squalus cefedii Lesson, Voy. "Coquille," ZooL, 2, 1 830: 93.^' 



hurus dekayi Linton, BulL U.S. Bur. Fish., ig, 1901: 429 (Woods Hole); Sharp and Fowler, Proc. Acad. 



nat. Sci. Philad., 56, 1 904: 506 (Nantucket). 

 Lamia nasus Lahille, An. Mus. nac. B. Aires, ^4, 1928: 310 (Mar de la Plata, Argentina). 

 hurus oxyrAyncAus Wilson, Proc. U.S. nat. Mus., 60 (5), 1932: 24 (parasites). 

 Isurus tigris WUson, Bull. U.S. nat. Mus., 158, 1932: 427, 446 (par.isitcs). 

 Not Isurus dekayi Smith, Bull. U.S. Bur. Fish., //, 1898: 89;" Kendall, Occ. Pap. Boston Soc. nat. Hist., 7 



(8), 1908: 7;*° Sumner, Osburn and Cole, Bull. U.S. Bur. Fish., 3/ (2), 1913: 736.*' 



Genus Carcharodon Agassiz, 1838 



Carcharodon Agassiz, L., Poiss. Foss., j, 1 838: 91 ; type species, verus Agassiz, L., equals Carcharias verus 

 Cloquet (Diet. Sci. Nat., 7, 1817: 69) and Squalus carcharias Linnaeus, 1758.^ 



Generic Synonyms: 



Squalus (in part) Linnaeus, Syst. Nat., 1758: 233 and subsequent authors.^ 



Carcharias (in part) Cloquet, Diet. Sci. Nat., 7, 1817: 69; Cuvier, Regne Anim., 2, 1817: 125, and 



subsequent authors; not Carcharias Rafinesque, 18 10 (see p. 98). 

 Carcharocles Jordan, Stanford Univ. Publ. Biol., j, 1923: 99; type species, Carcharias auriculatus Blainville, 



fossil. 

 Carcharhinus Whitley, Mem. Qd. Mus., 10, 1934: 199; not Carcharhinus Blainville, 1816 (see p. 320). 



Generic Characters. Teeth triangular, with slightly concave margins and coarsely ser- 

 rate edges, but without lateral denticles j lower teeth smaller and more slender than 

 uppers} 3rd upper tooth nearly as large as 2nd and 4th; snout conical, flattened above, 

 only moderately acute j anterior part of caudal without secondary longitudinal keel below 

 rearward extension of expanded caudal peduncle. Characters otherwise those of the family. 



Range. Pelagic; cosmopolitan in tropical, subtropical and warm temperate seas, in- 

 cluding the Mediterranean. 



Fossil Teeth. From Upper Cretaceous to Pleistocene, Europe; Eocene to Pliocene, 



43. Tortonese (Atti Soc. ital. Sci. nat., 77, 1938 : 291) revives this name to replace glaucus Miiller and Henle for the 

 Indo-Pacific form. But Lesson (1830: 93) expressly states that his specimen was harpooned "dans la ocean 

 Atlantique," in Lat. 6° S., though the longitude as given, 27° E., is patently in error, which accords with the 

 general location of the ship on the stated date of capture, Sept. 28, 1822. 



44. The account of occurrence near Woods Hole makes it highly probable that these citations actually referred to 

 tuisus. 



45. From the authorities cited, from the widespread distribution and from the abundance credited to it in the Gulf 

 of Maine, this evidently referred to nasus. 



1. The early history of the generic name Carcharodon is confused. Proposed in 1838 by Miiller and Henle (Charles- 

 worth Mag. nat. Hist., [2] 2: 37) with diagnosis but without mention of any particular species, its type species 

 was designated in tiie :anie ye.ir by L. Agassiz (Poiss. Foss., 5; 91) as "C. smithii Miiller and Henle." However, 

 since this is a nomen nudem, not used by Miiller and Henle, the genus must be credited to L. Agassiz, its type being 

 Carcharodon verus Agassiz (Poiss. Foss., 3, 1838: 91), the account of which, added to his illustration of its teeth 

 printed three years earlier simply as "Carcharias" (Poiss. Foss., 5, 1835: pi. F, fig. 3), leaves no doubt as to its 

 identity. We may point out that the specific name verus (equivalent to Squalus carcharias Linnaeus, 1758) actually 

 dates from Cloquet, 1 8 1 7, for as used earlier by Blainville (Bull. Soc. philom. Paris, 1 8 1 6 : 121) it was a no»:en 

 nudem also, since it lacked any indication as to identity. 



2. See under References, Carcharodon carcharias, p. 142. 



