226 POPULAR CONCHOLOGY. 



verged from its course, and was thrown over 

 the barnacles. Had the shell not been taken 

 until a later period, there can be little doubt 

 that the animal would have at length destroyed 

 the barnacles, and completely hidden them 

 from view, although it would appear that it 

 had not the power to remove them by ab- 

 sorption while they retained their vitality.* 



DIVISION II. 



92. Struthiolaria. — Shell oval ; spire ele- 

 vated ; mouth oval, terminated by 

 a very short straight canal ; right 

 lip thickened, left also thickened 

 and spread out ; no varices ; oper- 

 culum horny. Animal unknown. 

 — 2 species, recent. 



These shells are rare and sin- 

 gular ; they are in shape like a Buccinum, but 

 differ in having a thickened lip : they come 

 from New Holland and New Zealand. Sowerby 

 observes that the thickened aperture appears 

 only to exist in adult specimens of this genus. 

 The usual length of the shell is about two 



* Gray. 



