OF CONCHOLOGY. 159 



lobes like the fingrers on the hand. 

 This character is very conspicuous 

 in some of the Strombi. 



Papillous, having the surface covered 

 with dots or pimples. 



Papulous, pimply or blistered. 



Patulous, with a gap or opening. 



Pearlaceous, of or like mother-of- 

 pearl. 



Partitions, are calcareous processes, 

 dividinof the shells of the Nautili and 

 Serpula into different apartments. 



Pectinated, resembling a comb, cut 

 into reo^ular straicrht segments like 

 the teeth of a comb. 



Pedicle, the support of the Lepas 

 Anatifera and its corresponding 

 species, by which they are attached 

 to wood, &c. 



Peduncle, synonymous with Pedicle. 



Pellicle, the skin or film. 



Pellucid, transparent, clear, bright. 



Pentacapsular, having ^ye cavities. 



Pentaedrous, having five sides. 



