PLATE XLVII. 



Pachydiscus Neevesii (page 342). 



Figure 1. Side view of the type of this species, from Jataes Island, 

 nine twelfths the natural size. 



YoLDiA DiMiNUTiVA (page 390), 



Figure 2. The left valve from Nanaimo upon which this species is 

 based, four times the natural size. 



Pectunculus Veatchii (page 391). 



Figure^3. Side view of an adult specimen of this shell, from Blunden 

 Point, V. I., collected by Mr. James Richardson in 1872. 



Figure 4. Portion of the surface markings of a specimen from Texada 

 Island, four times the natural size, and shewing the 

 minute cancellation of the exterior. 



