548 BULLIDiE. 



rather densely disposed spiral series of impressed dots, 

 ■which seem hke the depressions which proceed from a de- 

 cussation of raised striae. The aperture is not quite so 

 capacious as in catena, since the hody occupies a rather 

 hirgcr portion of the ventral area ; it is not either so con- 

 tracted above, where the outer lip, which advances very 

 decidedly posteriorly, and is much arcuated below, juts 

 out and curves up a little, thus forming a slightly an- 

 gular lobe. The course of the inner lip is not so 

 sinuous as in the preceding shell, the incurvation of the 

 pillar lip, which exhibits a slight disposition to reflection 

 above, being less pronounced. In the majority of speci- 

 mens the length is only a single line, but it attains some- 

 times to a tenth of an inch in length, and a third less in 

 breadth. 



The animal of Bull(za punctata has been observed by 

 Mr. Alder, from whose beautiful drawings our figure is 

 taken. It is of a darker colour than its congeners, being 

 tinged and speckled with reddish brown on a yellowish 

 ground. Its capital disk seems different in shape, and 

 much shorter and broader than that of catena, and the 

 margin of the mantle is not laciniated. 



Torbay and Exmouth (Clark) ; Swansea (Jeffreys) ; 

 rather common in drift-sand from Barrow Island (S. H.) ; 

 Scarborough (Bean) ; Aberdeen (Macgillivray) ; off 

 Trouphead, Aberdeenshire, in sixty fathoms (Thomas) ; 

 Miltown Malby (Harvey) ; Kilkee in Clare, and Bundoran 

 in Donegal, where it was taken by Mrs. Hancock (W. 

 Thompson). 



