96 GENUS XIX. NAUTILUS. 



towards the spiral part (see Park. Organ. Rem. 3. p. 145. 

 t. 10. f. 10). 

 Fascwlites. a subcylindrical shelly or bony body, about 

 half an inch in length, rather tapering at the ends, and 

 formed by the spiral arrangement of perpendicular con- 

 camerated tubes, the tapering end of each of wliich is 

 obliquely and transversely folded on that of tiie preceding 

 one (see Park. Organ. Rem. 3. p. 158. t. 10. f. 28 to 

 31). 



