CARCHARINUS LIMBATUS. 127 



origin of anal. Anal little larger than the second dorsal, originating below the 

 middle of its base, and extending farther back in both base and tip. Caudal 

 long, more than one fourth of the total; subcaudal lobe deep, rounded; terminal 

 small. Scales small, with three to five keels. Description from a seventeen 

 inch specimen taken at Guadaloupe, W. I. 



Back slaty or ashy gray to olivaceous; whitish below; outer angles of 

 dorsals and caudal with a small spot of black on the tip (young), pectorals, 

 ventrals, and anal each with a larger spot. 



Reaches a length of ten feet or more. 



Common in the Gulf of Mexico and, about the West Indies, in the Caribbean. 



CaRCHARINUS LIMBATUS. 



Carcharias {Prionodnn) Umbatus Muller & Henle, 1841, Plagios., p. 49, pi. 19, f. 9; Dum^ril, 1865, 



Elasm., p. 375; Gunth., 1870, Cat. fishes Brit, mus., 8, p. 373; Day, 1878, Ind. fishes, p. 716 (non 



fig.); Steindachner, 1906, Sitzb. Akad. wiss. Wien, 115, p. 1425. 

 Carcharias microps Lowe, 1840, Proc. Zool. soc. Lond., p. 38; 1843, Trans. Zool. soc. Lond., 3, p. 18. 

 Prionodon cucuri Castelnau, 1855, Anim. nouv., Poiss., p. 99. 

 Isogomphodon maculipinnis Poey, 1866, Repertorio, 1, p. 191, 450, pi. 4, f. 3, 4; 1868, ibid., 2, p. 245, 



pi. 2, f. 1-3. 

 Carcharias maculipinnis Gunth., 1867, Trans. Zool. soc. Lond., 6, p. 490. 

 Carcharias {Prionodon) miilleri Steindachner, 1867, Sitzb. Akad. wiss. Wien, 56, p. 356. 

 Carcharias ehrenbergi Klunzinger, 1871, Syn. fische, 2, p. 221. 

 Carcharias aethalorus Jord. & Gilbert, 1882, Proc. U. S. nat. mus., 5, p. 104. 

 Isogomphodon Umbatus Jord. & Gilbert, 1883, Bull. 16, U. S. nat. mus., p. 23. 

 Carcharinus {Isogomphodon) Umbatus Jord. & Everm., 1896, Bull. 47, U. S. nat. mus., p. 40. 

 Carcharinus {Isogomphodon) aethalorus Jord. & Everm., 1896, ibid. 

 Carcharias Umbatus Ribeiro, 1907, Arch. Mus. nac, 14, p. 153, pi. 3; Gunth., 1910, Siidsee fische, 



3, p. 481. 



Body compressed; head broader than high, tapering from the gills; snout 

 elongate, rather narrowly rounded at the end, length nearly two lengths of the 

 mouth, which is little more than the width of the latter, or about five sixths of 

 the distance from the eye to the first gill opening. Nostrils smaller than the eye, 

 more than half way from the end of the snout to the orbit. Eye small, diameter 

 nearly one third of the length of the mouth, front edge of the orbit on a level with 

 that of the latter, nictitating membrane below. Gill openings large, width equal 

 length of mouth, hindmost one above the pectoral base. Mouth large, mucli 

 arched, with a short labial fold at the angle, slightly extended forward on each 

 jaw and bearing a short groove behind it. Teeth almost erect, in if rows; bases 

 broad; cusps narrow; upper serrate on the bases and to some extent on the sides 

 of the cusps ; lower not serrate on the cusps and with or without coarse serrations 

 on the bases; median on the upper jaws small; median lower tooth small, and 

 a tooth at each side of it little larger. Pectorals subfalciform, outer angle rather 



