16 



Linn, names. Engl. names. Synon. $ 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 



12 taeniatus Ribbon 



13 laevis smooth 



14 albidus whitish 



15 Clelandi small dotted 

 A 6 quadricostatus four-ribbed 

 17 Byronianus shaded 



M.Cab. 



Br.M. 



Au.Cab. 



California. 



S. Sea. 

 Panama. 



S. Sea. 



Ceylon, 

 u. 



Ireland. 



Br.M. u. 

 Sandwich Islands. 



