312 INVERTEBRATA OF MASSACHUSETTS. 



This little shell I took from fish caught off Cohasset. It has 

 since been frequently found in fishes taken in various parts of Mas- 

 sachusetts Bay. 



It belongs to Kiener's section of Columbella-formed Buccinum, and 

 greatly resembles his B. Idcteum in size and general appearance, but 

 is different in color, wants the peculiar spots, and is not toothed within 

 the lip. It is not plaited like B. pulchillum and B. dermesloideum. 

 Some specimens are beautifully tinted with rose-red, but others are of 

 a dingy-white, or tinged only around the apex. In one specimen there 

 is something like a dark band just above the suture, and emerging 

 from the posterior angle of the aperture. The revolving lines are 

 very minute, and in old specimens are scarcely discerned on the spire. 

 To the naked eye, the shell appears smooth and shining. 



It is probable that both this species and the next, actually belong to 

 the genus COLUMBLLA. 



BU'CCINUM LUNA'TUM. 



Shell small-) ovate-conic, surface smooth ; color reddish-brown, 

 with two series of crescent-shaped, whitish spots ; aperture oval, its 

 outer lip dark-brown, and toothed within. 



FIGURE 196. 

 State Coll., No. 7. Soc. Cab., No. 572. 



Nassa lunata, SAY ; Journ. Acad. Nat. Sc., v. 213. 

 Buccinum lunatum, ADAMS ; Bost. Journ. Nat. Hist., ii. 266. 



Shell small, ovate-conic ; whorls six, slightly convex, separated 

 by a shallow suture ; surface altogether smooth, excepting a single 

 revolving line below the suture, and a few around the base ; color 

 reddish-brown or fawn-color, with two, and sometimes three, series 

 of crescent-shaped, yellowish spots on the lower whorl ; the light 

 color often predominating over the dark ; aperture oval, narrow, 

 with a small sinus or recess at the posterior angle, and ending in 

 a very short canal in front ; outer lip simple, and dark brown, 

 toothed along its inner margin ; pillar covered with brown callus, 

 the outer edge of which is somewhat elevated. Length inch, 

 breadth T \ inch, divergence 43. 



Found abundantly to the south of Cape Cod, as far north as 

 Provincetown, about Martha's Vineyard, Nantucket, and Buzzard's 



