38 TERMS USED 



Crenulatmn is when the edge is wrinkled, as in Buccinum Persi- 

 cum and patulum. 



Tetradactylum is when the edge of the outer hp is extended into 

 four claws, as in Strombus Pes pelecani. 



Hexadactylum is when the outer lip is extended into six claws, 

 as in Strombus. Cldragra. 



Heptadactylum is when it has seven claws, as in Strombus 

 Lambis and Scorpius. 



Decadactylum is when the lip is furnished with ten claws, as 

 in Strombus Millepeda. 



Trilobum is when the outer lip terminates in three obtuse divi- 

 sions or lobes, as in Strombus lentiginosus. 



Prominens is when the outer lip is but a little extended, as in 

 Stromhus Pugilis. 



Rotundatum is when the outer lip is more extended and 

 roundish, as in Strombus Epidromis and Gigas. 



Attenuatum is when the edge of the outer lip is very thin, as in 

 Strombus Vrceus and dentatus. 



Fissum is when the edge of the outer lip is notched at the end 

 nearest the spire, as in Murex babylonius. 



Perpendicular e is when a small part of the shell is seen within- 

 side suspended from the sunmiit of some Patelke, as in Pa- 

 tella equestris. 



haterale is when a kind of partition is seen attached to one 

 side within a Patella, as in Patella chinensis and neritoidea. 



Concavum is when a Patella has a concave partition within, as 

 in Patella fornicata. 



