OCTOPODA. 



to rawls abac Ih* bottom having it, on the contrary , u|.p i 

 wkrab are rotupletoly contrary to what wo see 



Arin i* Arft, serlt ea M htsJ M tW >otu. (>(.) 



OCTOI'ODA. 



mong tbo poUgio molluMS on the oue hand, and the littoral mollusc* 

 on Ui other." 



The progroM of the animal when moving as lut represented was 

 alow, and it worked iUelf ouwardi like the gMteropodoiu molltuca. 

 M. rUng remark* that the repUtiou was only apparent, fur the suckers 

 really caused the motion. 



When the poulp was at the point of death it drew in by slow 

 degrees its Urge arms and their membrane*, and contracted them 

 upon themselves and all the other arms, so as to obstruct tho opening 

 of the obeli At this moment the shell was moved, aud the i< >ulj. 

 separated itself from it, not voluntarily but accidentally, fur it no 

 longer held it in any way. It appeared at first to become a little 

 reanimated, made some movements in the baaui upon iU head, tlit-n 

 Ml from weakness, and soon died. All this passed in less than U-n 

 minutes, 



A beautiful series of preparations of this animal exists in the museum 

 of the lioyal College of Surgeons. 



Shell* of Aiftmaula Alfa, m, young. 

 a 



Shclta of Arfonaula fuVmi/oxii. *i, a, young. 



Several species are already known ; and the specific clmractn 

 In great measure upon the tuberoulosities and rib-like elevations on 



