GASTEROPODA : BUCCINID^. 



479 



MURICID.E, OR MUREX FAMILY. This Family is rep- 

 resented by about nine hundred living, and about seven 

 hundred fossil species of gasteropods. They are preda- 

 tory on other mollusks. Marine. 



Fig. 385- 



Fig. 386. 



Murex tenuispina, Lam. One half. 

 Moluccas. 



Fig. 387- 



Pyrula cana.liculata, Linn. 

 One half. United States. 



Fig. 388. 



Tritonium pygmceutn, Gould. 

 New England. 



Raitella f^ran : f--ra, Lar 

 Two thirds. Australia. 



BucciNiDyE, OR WHELK FAMILY. This Family con- 

 tains gasteropods which have the shell notched in front, 

 or the canal abruptly reflected. There are about one 

 thousand living, and three hundred and fifty fossil spe- 

 cies. They are marine and carnivorous. 



