, 



. 52 Storer's Synopsis of the Fishes of North America. 



4. C'areharias griseus, Atres. 



Above of a light bluish-gray color, sides lighter, beneath white. Back convex in front of 

 the first dorsal fin. Numerous long, pointed teeth in jaws, in some instances with a 

 small projection on each side near the base ; edges of teeth smooth. Pectorals large ; sec- 

 ond dorsal arises just posterior to the origin of the anal fin. 



D. (?)• P- (•')■ v - (•')■ A. (.'). G. (.'). Length, 3 to 7 feet. 



Brookhaven, Long Island, Ayres. 



Carcharias griseus, Ayres, Bost. Journ. Nat. Hist., iv. p. 293, pi. 12, fig. 4. 



GENUS II. LAMNA, Cuv. 



Muzzle pyramidal, under the base of which are the nostrils. Branchial ap- 

 ertures all in front of the pectorals. 



^-.-/•'iv {,^-J/. , .i,.L 1. Lamna punctata, Mitchill. 



--' ' ( Body cylindrical, fusiform. Above greenish, becoming of a slate-color after death ; light- 



er upon the sides ; white beneath. Snout blunt. Each jaw is furnished with three rows of 

 small, sharp, triangular teeth, smooth at their edges; the first two rows are straight ; the 

 back row recurved ; the three teeth on each side of the middle of the lower jaw the largest. 

 Anal fin opposite to the second dorsal- Caudal keeled on its sides ; the upper lobe of the 

 caudal considerably larger than the lower lobe. Head and sides of body punctured by series 

 of mucous pores. 



D. (?). P. (?)• "V. (?)• A. (?). C. (?). Length, 3 to 10 feet. 



Massachusetts, Storer. New York, Mitchill, Dekay. 



Squalus punctatus, Green-backei! Shark, JIitchill, Trans. Lit. and Phil. Soc. of N. Y., i, p. 483. 

 Lamna punctata, Mackerel Shark, Storer's Report, p. 185, pi. 3, fig. 2. 



" " " " Storer, Bost. Journ. Nat. Hist., it. 534. 



" " Mackerel Porbeagle, Dekay's Report, p. 352, pi. (53, figs. 206, 207. 



2. Lamna terrae-novae, Rich. 



Body more elongated and cylindrical than in the L. punctata. Upper caudal lobe much 

 elongated, and furnished with an accessory lobe at the tip. Teeth triangular, serrated. No 

 caudal carina. Snout pointed, thin, and broad. Uniform dusky brown above, tinged with 

 bluish ; white beneath. 



D. (?). P. (?). V. (?). A. (?). C. (?). Length, 7 feet. 



Newfoundland, Richardson. Rhode Island, Dekay. 



Bqualua (CarchariasJ terras-novae, Newfoundland Shark, Rich., Fauna Eoreal. Americ, ill. p. 239. 

 Lamna caudata, Long-tailed Porbeagle, Dekay's Report, p. 354, pi. 62, fig. 205. 



