THE XAUTILUS. 



4. Lutea Group. 



75 



P. lutea Lesson. 

 5. Umbilicata Group. 



p. umbilicata. 



P. iimbilicata Pse. 

 P. gibha Pfr. 

 P. bicolor Pse. 



p. gibba. 



P. hebe. 



P. crassilabris Pse. 

 P. /te6e Pfr. 



P, otaheitana. 



6. Otaheitana Group. 



P. otaheitana Brug. 



P. vanikorensis Q. & G. 



P. mooreana Hartm. 



P. lineaia Less. 



P. suturalis Pfr. 



P. garrettii Pse. 



7. Treniate Group. 



P. lignaria Pse. 

 P. producia Pse. 

 P. nodosa Pfr. 

 P. stolida Pse. 

 Pyifo-yaPfr. 



P. carteriensis. 



P. tceniata Morch. 

 P. micans Pfr. 

 P. carteriensis Q,. & G. 

 P. attenuata Pse. 

 P. cinerea Albers. 



P. minima Hartm. 

 P. regularis Hartm. 

 P. micans Hartm. 

 P. corneola Hartm. 

 P. woodlarkiana Hartm. 

 P. hastula Hartm. 

 P. c/ara Pfr. 

 P. hyalina Mod. 

 P. Hartmani Smith. 

 P.jiexnosa Hartm. 



