185 

 DIV. III. 



UJVIVALVE SHELLS. 



GEN. XIX. 



NAUTILUS. 



j^nimal much in obfciirity. 

 Rumpf. Muf. t. 17. f. B. 



SHELL, univalve, compofed of concamerations, or 

 cells, communicating with each other by a fmall aperture, 

 or tube. 



We fhall in this place remark, that all the fpecies of 

 this genus, hereafter defcribed, are minutely fmall, the 

 lacuftris excepted; the extreme beauty, or fingularity of 

 which, is only to be feen under a microfcope. 



The animal inhabitant, is at prefent fo little known, 

 that it has not obtained a place in the Syjlem of Nature, 

 and in all probability, is very various. 



B b To 



