[ 20 } 



F I G. 70. 



NAUTILUS Spiralis ciafT-is utrinque umbilicatus geniculis lineatis. 



The thick fpiial doubly umbilicated nautilus, with fine joints. 



The colour opaque white. 



From Reculver — exceeding rare. 



F I G. 7r. 



NAUTILUS Spiralis lobatus anfra6libus fupra rotundatis fubtus deprefTioribus. 



The fpiral lobated nautilus, with the fpires rounded on the upper 



fide, and deprelTed on the under. 

 Colour opaque white. 

 From Whitftable — not common. 



F I G. 72. 



NAUTILUS Oblongus carinatus apertura lineaii ovali, 



The oblong carinated nautilus, with a narrow oval apertujre. 

 The colour whitifn, tranfparent like glafs. 

 From Scafalter and Sandwich — very rare- 



F I G. -j^. 



NAUTILUS Subarcuatus geniculis exertis. 



The bending nautilus with raifed joints, 

 The colour opaque brown. 

 From Shcpey ifland — very ra^e. 



F I G. 74. 



