52 Mighels^ and Adams^ Descriptions of 



color, when fresh, covered with a thin and almost perfectly 

 transparent epidermis ; whorls six, well rounded, and covered 

 with six or seven equidistant, revolving, thread-like ribs, with 

 grooves alternating ; suture well impressed ; spire regularly 

 tapering, pointed ; aperture oblong-oval, polished ; within of 

 a bright reddish-brown color ; canal rather narrow, nearly 

 straight ; labrum rather thin, crenulated by the ribs and 

 grooves ; cokmiella arcuated above the middle ; two distinct, 

 oblique, delicate folds above the commencement of the canal. 



Length ,7 inch ; breadth ,3 inch ; divergence 45^^. 



Cahinets of Dr. Gould, J. G. Anthony, J. W. Mighels, and 

 C. B. Adams. 



Habitat. Mingan, in the Gulf of St. Lawrence ; taken 

 from the stomachs of cod-fishes, by Mr. Foster, fisherman, in 

 the summer of 1841. 



Remarks. This remarkable and truly beautiful shell is not 

 very nearly allied to any species with which we are acquainted, 

 unless it be to that of F. fnsiformis, Valenc, from New Hol- 

 land. That species, however, is much larger than our shell, 

 is much less regularly and strongly ribbed, and has a tooth- 

 like process on the labium, of which our shell is destitute. 

 We suppose this to be the first and only species of the genus 

 that has ever been found on our coast. 



FUSUS CANCELLATUS. 

 PI. IV. Fig. 18. 



F. testa subulate, longitudinaliter plicata, transversa striata: anfractibus 

 septem, convexis : suturA ralde impress^ : spira acuminata } apice acuti ; aper- 

 tura sub-ovata } labro crenato. 



Shell rather slender, turreted, with about twenty longitu- 

 dinal ribs, running a little obliquely to the left, crossed by 

 numerous transverse, revolving, raised lines, giving the shell 

 a cancellated appearance ; whorls seven, convex ; suture well 

 impressed ; spire gracefully tapering ; apex acute ; columella 

 slightly arched at the upper part ; aperture rather narrow, 

 sub-ovate ; canal short, straight, rather wider at the base ; 

 labrum thin, delicately crenated by the transverse stria?. 



