CARCHARINUS MTLBERTT. 133 



Carcharinus milberti. 



Carcharias {Prionodon) milherli Muller & Henle, 1841, Plagios., p. 38, pi. 19, f. 3, (teeth); Dum^ril, 



1865, Elasm., p. 360; Doderlein, 1881, Man. ittiol. Medit., 1, p. 44. 

 Carcharias ceruleus Db Kay, 1842, N. Y. fish., p. 349, pi. 61, f. 200. 

 Lamna caudata DeKay, 1842, ibid., p. 354, pi. 62, f . 205. 

 Squalus milberti Nardo, 1853, Sopra spec, pesci., p. 15. 

 Eulamia milberti Gill, 1864, Proc. Acad. nat. sci., Phil., p. 262. 

 Eulamia nicaraguensis Gill & Bransford, 1877, Proc. Acad. nat. sci. Phil., p. 190. 

 Carcharias nicaraguensis Lutken, 1880, Vid. medd. nat. forh., p. 21 extr., fig. 

 Eulamia coeruleus Jordan & Gilbert, 1882, Proc. U. S. nat. mus., 5, p. 245. 

 Carcharias fronto Jordan & Gilbert, 1882, ibid., p. 102. 

 Carcharias coeruleus Jordan & Gilbert, 1883, Bull. 16, U. S. nat. mus., p. 872. 

 Carcharinus milberti Jord.\n & Gilbert, 1883, Bull. 16, U. S. nat. mus., p. 22; Jord. & Everm., 1896, 



Bull. 47, U. S. nat. mus., p. 37. 

 Carcharias plumbeus Jordan & Gilbert, 1883, Bull. 16, U. S. nat. mus., p. 872. 

 Carcharinus nicaraguensis .Jordan, 1887, Proc. U. S. nat. mus., 9, p. 556; Jord. & Everm., 1896, Bull. 



47, U. S. nat. mus., p. 39. 

 Carcharias milberti Moreau, 1891, Poiss. France SuppL, p. 2; Pietschmann, 1906, Ann. k. k. nat. 



Hof museums, 21, p. 133 extra. 

 Carcharinus fronto .Jord. & Everm., 1896, Bull. 47 U. S. nat. mus., p. 39. 

 Carcharias azureus Gilbert & Starks, 1903, Mem. Cal. acad. sci., 4, p. 11, pi. 2, f. 5. 



Snout rather short and broad, rounded and blunt, longer than the mouth 

 but nearly equal to its width. Nostrils about midway in the preoral length, 

 their width and the length of the orbit nearly equal. Teeth serrated, in 25-29 

 rows; upper broader, with cusps directed somewhat obliquely outward, becom- 

 ing more oblique toward the angles and bearing a notch on the outer edge; lower 

 narrow, erect, with a broad base and fine serrations; median upper small and 

 serrated, lower entire. Pectorals longer than broad, two thirds as wide as long, 

 subfalciform, outer angle rounded, hind margin somewhat concave. Origin of 

 dorsal slightly behind the end of the base of the pectoral, base extending back 

 over nearly half the distance to the ventrals, upper angle rounded, hind border 

 concave. Second dorsal and anal subequal, acuminate behind, origin of the 

 former slightly forward, both angles of the anal sharp and hind margin deeply 

 indented. Caudal nearly one fourth of the total length. 



Greyish brown; lighter below. 



Middle Atlantic, and Middle Eastern Pacific. 



The type was taken off the Coast of New York; Dum^ril reported the 

 species from the Mediterranean, and Doderlein, 1881, pubUshed an extensive 

 list of authorities and synonyms. 



Off the coasts of the eastern United States to the Caribbean, entering 

 fresh waters; it is rather common. 



