16 



Linn, names. Engl, names. Synon. 8^ Ref. Habitat. 



TROCHUS. 



TOP-SHELL. 



1 undosus waved 



2 Unguis clawed 



3 olivaceus olive gray 



4 Pellis Serpen- snake skin 



tis 



5 armillatus beaded 



6 acuminatus sharp-edged 



7 rugosus rough 



8 Listeri Lister's 



9 elegantulus red, rough 



10 Tankervillii Tankerville's 



11 granosus grained 



M,Cah. 



California. 



16 quadricostatus four-ribbed 



17 Byronianus shaded 



Br.M. 



Au. Cab. 



S. Sea. 

 Panama. 



S. Sea. 



u. 

 Ceylon. 



Ireland. 



Br.M. u. 

 Sandwich Islands. 



