VOLUTA. VOLUTE. 249 



depression under them which is a little prominent in the 

 middle : hinge with three teeth in one valve, two of them 

 approximate, the middle one cloven : in the other valve two, 

 one of them cloven: length five-eighths of an inch ; breadth 

 a very trifle more. 



This shell, which was taken alive in Dublin bay, may pos- 

 sibly be the same which Pennant has figured. Indepen- 

 dently of the sinuosity, it differs materially from all such as 

 seem allied to it, in its contour, especially in the singular 

 circumstance of having the cartilage side broader and less 

 produced than the other, in the central beaks, and in the 

 teeth, v. v. 



VOLUTA. VOLUTE. 



Shell with a single valve, more or less spiral : 

 aperture narrow, reaching much down the shell; 

 without beak; the pillar toothed or plaited. 



1. Volutatornatilis. Oval Volute. Fig. 32, 33. 

 ' Lister, pi. 835. f. 58 Pennan', pi. 74. f. 1 Da Costa, 

 pi. 8. f. 2 Donovan, pi. 57 Dorset Cat. pi. 14. f. 2. 



Shell oval, ending in a fine point : spires eight, a little 

 rounded and deeply defined by the separating line, the first 

 very large and cylindrical, the others small, very finely and 

 regularly striate transversely, with a few obsolete longitu- 

 dinal wrinkles : color yellowish-white, ferruginous, or pale 

 purple, with generally two whitish rather broad distant 

 bands on the larger volution : aperture long, narrow-oval 

 the outer-lip thin and plain ; pillar with a single plait 01 

 fold: length three-quarters of an inch; breadth three 

 eighths. 



On most sandy beaches, v. v. 



Valuta denticulata. Purple-tipped Volute. 



Montagu, pi. 20. f. 5 Dorset Cat. pi. 18. f. I Walker, 

 f. 50, and 53. 



Shell oval, pointed, semitransparent, horn-color, inclining 

 to purplish-brown at the tip : spires seven or eight, coarse, 

 wrinkled longitudinally, with a few coarser nidges on the 



larger 



