3? Of the Polype*^ Armi. 



Snail: and when quite contradled is very 



much like the Arm of a Star-Fifli. 



The following Figures will explain my 

 Meaning better. 



A. Reprefents the Arm of a Polype contraci- 

 ed^ and exaBly like one of the Radii of a 

 Star-Fijh. 



B. All Arm contraEted in another Manner^ 

 and thickned at the Extremity. 



C. An Arm about halfway extended, 



D. The Arm of a long- arniedVoX^'^t fully 

 extended^ with a little Knob or Button ap- 

 pearing at its E?2d. 



It is impoflible to tell what numberlefs 

 parts each of thefe Arms is compofed of, all 



of 



