PLATE XLVIIL 



Pachydiscus (Haradai ? VAR.) PERPLiCATUS (page 346). 



Figure 1. Side view of the only specimen that the writer has seen, 

 from the Puntledge or Comox River, V, I., nine twelfths 

 the natural size. The only place where any part of the 

 siphonal region is preserved is at a (not A). 



MoDiOLA SiSKiYOUENSis (page 394). 



Figure 2. Left valve of a small Modiola that is thought to be referable 

 to this species, from Brennan Creek, V. I. Twice the 

 natural size. 



LiTHODOMUS NiTiDus (page 395). 



Figure 3. Side view of a specimen from the Nanaimo mines, shewing 

 the right valve, and twice the natural size. 



