Shells of New England. 43 



from the summit of the rima, and is strengthened above by a 

 plate miiting it with the sides of the shell j aperture ovate, 

 ;slightly crenate. 



Length, ,46 inch ; width, ,33 inch ; height, ,35 inch. 



Cabinets of G. B. Sowerby, J. W. Mighels, and C. B. 

 Adams. 



Habitat. This shell was taken from the stomach of a had- 

 dock, by Mr. Newbegin, a fisherman, in July, 1840, seventy- 

 five to one hundred miles off the mouth of Kennebec river, 

 on fishing ground called by the fishermen " Monhegan Falls. ^^ 

 The water at that place is from forty to seventyfive fathoms 

 in depth. 



Remarks. This very singular and truly splendid species 

 resembles C. Noachina, Lin., but differs from that shell in the 

 following characters ; in C. Noachina the ribs are more eleva- 

 ted, the corresponding interior sulci are much more obvious ; 

 posterior slope much and regularly curved, shell smaller, pro- 

 portionately longer, not so high, interior arch without wings. 

 Only four specimens have been found. 



BULLA PUJNCTO-STRIATA. 



Plate IV. Fig. 10. 



B. testa alba, solida, eleganter striatEi ; Btriis crebris, inequidistantibus, punc- 

 tatis ; spira occulta ; apertura magna. 



Shell white, rather solid, ovate, with crowded, inequidistant, 

 distinctly punctate strice ; spire concealed ; aperture very 

 large, contracted at the upper third by the intrusion of the 

 body whorl ; labrum rising above the apex, very sharp and 

 regularly arcuate ; labium with a very thin lamina extending 

 to the apex. 



Length, ,38 inch ; breadth, ,24 inch. 



Habitat. Casco Bay ; taken from the stomach of a had- 

 dock, in the summer of 184 L 



Remarks. This remarkable and truly beautiful shell, re- 

 sembles an enlarged specimen of B. lineolata, Couth., to 

 which it is allied ; but it is easily distinguished by its larger 

 size, by the elevation of the labrum above the apex, and above 



