22 CONTillBUriONS TO NORTH AMERICAN ICHTHYOLOGY - IV. 

 IS.-t'ARCIIAKINUS IJlainvillr. IMC. 



(Cynocephalus Klein, Gill.) 



( Citi-clmr'nix Cn\ i<-r, nut of K:itmr>i|ue. ) 



ii Miilli-r fc Ilt-nli-.) 

 iii ( Jill.) 



(lilainvilli- l~l(i : type ' '/< luirinnx < iniuni rmnii Hlainvillf. ) 



I,arue sharks, without spiracles, with tin- troth in both jaws strongly 

 serrated in the adult, those in the upper jaw broad, those below nar- 

 rower, straight, and claviform ; lirst dorsal lar.ue: second dorsal much 

 smaller, usually not larger than the anal. Species numerous in tin- 

 tropical seas. (/.d(ij>a/.u-, rouo-h ; /('."/r,. shark ; abbreviated 1'roin Carcha- 

 rorhinus.) 



' l'.uil\ :iuil licinl slrndiT : dorsal tin inserted midway between ])eetorals and veu- 

 trals ( ( 'an- 



25. C. uI:iuriiN (L.) .Tor. & GiUt.Ci-i-nt llhic Shark. 



Snout very lon^, nostrils rather nearer to the mouth than to th 

 extremity of the snout ; no labial fold except a groove at the an^le of 

 the mouth : teeth of the upper jaw oblique, scarcely constricted near the 

 base ; lower teeth slender, triaug'ular in young examples, lanceolate, with 

 a broad base, in old ones. Pectoral (in lonjr, falciform, extending to the 

 dorsal, which is nearer the ventnils than the root of the pectorals." ((i'dn- 

 fltrr.) A lar-ie shark of the warm seas, occasionally taken on our 

 coast. 



linn-iix L. Syst. Nat.; Ciin-lniriiix </l<tncux (Junt IKT, viii, 'M4.) 



I'.i-dy and ln-ad stunt ; dorsal tin placed elosr In-hind th<- root of the jiretorals 

 ( KH In in in (Jill). 



<'. (thsciirns ( l.i- Sin-in 1 ) .1. & O. Itnxky Shark. 

 Dark dear blue above, white below; head rather pointed, flattened 

 :ili<i\c and beh>\\ ; lirsi dorsal rather lar^e; second smaller than tlu- 

 anal, and eoiisiderabl\ produced behind; pectorals lar.ue, talciform. .V 

 lai.^e shark, reaching a length of nine or ten feet, inhabiting the North 

 Atlantic and frequently taken on our coast. 



,:i,i/, i. ,,/,.,/,, l.r Sin-nr, .lourn. Ac. Nat. Sei. 1'liila. \-\>-. i, 'J- 1 :'. ; ('art-hanax 

 "!" in - ( JimlhiT, viii, '.'('*'<. ) 



27. <\ niillH-in Mull, i A 11,-nlr) .F,.r. A (Jill.. /.7i/< Sh<irk. 



'fhis species is represented as having the snout shorter, blunter, and 



