282 



TEST ACE A ATLANTIC A. 



seen, when closely inspected, to have many even prima facie 

 differences. Thus it is not only shorter (relatively) and more 

 ventricose than the L. truncatula, and with its surface (instead 

 of being slightly shining and densely crowded with minute 

 oblique striae) almost unsculptured and opake, but its aperture is 

 less elongate and more rounded, and has the peristome (instead 

 of being broadly interrupted) conspicuously continuous across 

 the body-volution. 



MADEIRAN CATALOGUE. 



