20 PROCEEDINGS OF THE NATIONAL MUSEUM vol.99 



Genus GLYPHIS Agassiz 



Glyphis Agassiz, Recherches sur les poissons fossiles, vol. 3, 243, 1843. (Geno- 

 type, Glyphis hastalis Agassiz.) (Ref. copied.) 



GLYPHIS GLAUCUS (Linnaeus) 



Great Blue Shakk; Tibur6n Aztjl 



Squalua glaucus Linnaeus, Systema naturae, ed. 10, vol. 1, p. 235, 1758 (Europe.) 

 Prionace glauca Rohl, Fauna descriptiva de Venezuela, p. 364, fig. 176, 1942 

 (coast of Venezuela). 



Genus GALEOCERDO Mtiller and Henle 



Galeocerdo Muller and Henle, Sitzb. Akad. Wiss. Berlin, 1837, p. 115. (Genotype, 

 Squalus arciicus Faber, in Muller and Henle.) (Ref. copied.) 



GALEOCERDO CUVIER (Lesueur) 



Tiger Shark; Leopard Shark; Tintorera 



Squalus cuvier (Peron and Lesueur) Lesueur, Journ. Acad. Nat. Sci. Philadelphia, 



vol. 2, p. 351, 1822 (northwest coast of New Holland), 

 Galeocerdus maculatus Rohl, Fauna descriptiva de Venezuela, p. 365, fig. 177, 1942 

 (coast of Venezuela). 

 This species is Galeocerdo arcticus of authors. 



Genus MUSTELUS Link 



Mustelus Link, Mag. Phys. Naturg. Gotha, vol. 6, pt. 3, p. 31, 1790. (Genotype, 

 Squalus mustelus Linnaeus.) 



MUSTELUS CAMS (Mitchlll) 



Dog Shark; Caz6n 



Squalus cams Mitchill, N. Y. Lit. Philos. Trans., vol. 1, p. 486, 1815 (New York). 

 Mustelus canis Rohl, Fauna descriptiva de Venezuela, p. 364, 1942 (coast of 

 Venezuela) . 



Family SPHYRNIDAE: Hammerhead Sharks 



Genus SPHYRNA Rafinesque 



Hammerhead Sharks; Pez martillo o cornuda 



Sphyrna Rafinesque, Indice d'ittiologia siciliana, p. 60, 1810. (Genotype, 

 Squalus zygaena Linnaeus.) (Ref. copied.) 



SPHYRNA BIGELOWI Springer 



Sphyrna higelowi Springer, Journ. Washington Acad. Sci., vol. 34, pp. 274-276, 

 figs. lA-lD, 1944 (Uruguay and Brazil). 



XJ.S.N.M. No. 123217, head only, measuring 230 mm. across greatest width, 

 Amuay Bay, U. S. S. Niagara, May 15, 1925. 



SPHYRNA ZYGAENA (Linnaeus) 



Squalus zygaena Linnaeus, Systema naturae, ed. 10, vol. 1, p. 234, 1758 (Europe; 



America) . 

 Sphyrna zygaena Rohl, Fauna descriptiva de Venezuela, p. 366, fig. 179, 1942 



(coast of Venezuela). 



