146 NEW-YORK FAUNA — MOLLUSCA. 



wrinkled by the lines of growth. Aperture ovate : lip festooned by the termination of the 

 revolving ribs ; pillar-lip arched, and with a broad callus ; beak cancellate externally ; canal 

 short and curved. 



Color. Brownish white or ash-colored ; pearly white within : grooves on the lip chesnut- 

 colored. 



Length, 2*5 ; of aperture and canal, 1*6. 



It is often an inch longer than this, but the proportional dimensions are the same. It is 

 closely allied to F. carinatus of Lamarck ; but that shell is represented with the lip perfectly 

 smooth, and the reference to Pennant shows a totally differently shell. It occurs in the 

 stomachs of fishes, and has been found, after violent storms, on the shores of Massachusetts 

 and farther north. 



FlJSUS HARPUXARIUS. 



PLATE IX. FIG. 187. 



Fusus harpularius. Couthouv. Bost. Journ. Nat. History, Vol. 2, p. 106, pi. 1, fig. {I 

 F. id. Gould, Invertebrata of Mass. p. 291, fig. 191. 



Description. Shell small, fusiform or ovate-oblong, turreted. Whorls six or eight, convex, 

 slightly angular, flattened above : suture distinct. Surface with seventeen to nineteen rounded 

 obliquely vertical folds, crossed by minute revolving lines ; these folds become, on the body- 

 whorl, obsolete beneath. Aperture elongate-oval, angular above : lip sharp and smooth within ; 

 columella smooth, arched, with a slight callus beneath ; canal short, and inclined to the left. 



Color. Yellowish white, or brown or orange : columella white. 



Length, 0'5. Width, 0"25. 



This species was first obtained and described by Mr. Couthouy, from the stomachs of 

 fishes on the northern coast. I am not aware that it has yet been found on the shores of this 

 State. 



Fusus RUFUS. 



PLATE IX. FIG. 189. a. natural size ; b. maonifikd. 



Murex rufus. Montagu, Test. Brit. p. 203. 



Fusus pleurotomarius. Couthouv, Bost. Journ. Nat. History, Vol. 2, p. 107, pi. 1, fig. 9. 



F. rufus. Gould, Invertebrata of Mass. p. 290, fig. 192. 



Description. Shell small, fusiform, elongated, tapering to an acute point : suture distinct. 

 Whorls seven to nine, compressed or very slightly convex, with from seventeen to twenty 

 regular oblique undulating folds, alternating with each other at the sutures : body-whorl with 

 an indistinct shoulder near the suture, and the folds obsolete beneath, their places being occu- 

 pied by faint revolving lines. Aperture narrow, short : lip thin and smooth within, slightly 

 compressed about its middle portion. Columella arched above ; beneath convex, and turned 

 to the left, with a short canal. Color. Dark fawn or reddish. Length, 0"75. Width, 0*2. 



This is a very rare shell, occurring on both sides of the Atlantic, and first detected by Mr. 

 Couthouy in the stomachs of fishes caught off our coast, as yet its only known locality. 



