p. Z.S.1884 PI. urn 



18 a, 



19. 



iSTo 



13a. 



17 -b. 



16 a. 



# 



17 J. - 



16, 



R-Mntenv, del.et HtK . 



.^firvteiTv Hros imp. 



NEW TEHHESTRIAL AND FLUVIAILLE MOLLUSCA 

 FROM THE "CHALLENGER" EXPEDITION. 



