30 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
37. h. coniltbica (Gmel.) Fleming. — Beaumarin Shark; Porbeagle ; Tope. 
Snout conical, pointed, rather longer than the cleft of the mouth ; 
teeth ^ or on each side or ^ in European specimens, fide Gunther) ; 
the third tooth on each side in the upper jaw small ; first dorsal begin- 
ning over the axil of the jiectorals; color gray. A large and fierce 
shark of the North Atlantic, not till lately recorded from onr coast. (A 
si)ecimen in the Museum of Butler University, from which the above 
account was taken, was obtained by Dr. T. H. Bean at Wood’s Hole, 
Mass.) 
{SquaUis cornuhieus Gmelin, L. i, 1497 ; Giiutlier, viii, 389.) 
28.— CARCHARODON Smith, 18—. 
Great White Sharlik. 
(Sir Andrew Smith, Proe. Geol. Soc. London, — : typo Carcharodon cajwnsis Smith-=C. 
roiidelcti . ) 
This genus differs from Tnuru!; chiefly in the dentition, the teeth being 
large, flat, erect, regularly triangular, their edges serrated ; first dorsal 
moderate, nearly midway between pectorals and ventrals; second dorsal 
and anal very small) pectoral large, ventrals moderate) caudal peduncle 
rather stout) spiracles minute or absent. Sharks of very large size ) 
found in most seas, [y.dpyajtdq^ rough ) odwv, tooth.) 
38. C. i’OBa<leleti MUller & Henle. — Man-eafer Shark; Atwood’s Shark. 
Body stout, depth about in total length) mouth very large) both 
jaws with five rows of large, triangular, serrated teeth, those in the 
lower jaw narrower, about in each row ) first dorsal somewhat behind 
l)eetorals) caudal fin large and .strong, (k)lor leaden gray) tips and 
edges of pectorals black {Storer). One of tiie largest of the sharks, 
reaching a length of fifteen feet and the weight of nearly a ton. It is 
found in all tem})erate and tropical seas, l)ut is rare on our coasts. 
American specimens have been named C. atwoodi, but are probably not 
distinct from the European. 
(Miiller & Henlo, Plagiostomes, 7(J; Giiutlier, viii, 392: Varcharias atwoodi Storer, 
Fislie.s M:i.ss. 222.) 
Familv xn.— cetorhinid^. 
{I'lie BaHkiiKj Sharks.) 
Sharks of immense size, vdth the gill openings extremely wide, ex- 
tending from the back nearly to the median line of the throat) all of 
them in front of the pectorals ) mouth moderate, the teeth very small, 
