1IAMITS or TIIK CEPHALOPODA. 



Lol/'jo I'ulijurin. I have observed several Calamaries of 

 moderate si/e : these animals are always in motion, which is 

 rapid and jerky. I never found them in repose, tor they are 

 essentially pelagic, and only approach ;iie coast to oviposit. 



Tlir Calamary completely extends iis arms and keeps a posi- 

 tion more or less oblique, hut approaching horixontal. The arms 

 arc united into a single tlaUened mass, sharp at the summit, by 

 reason <f iheir uiu>(|ii:il length; t he tentacnlar arms, with their 

 extremities applied one to the other, form this extreme point. 



When the Calamary swims forwards, the animal lakes an 

 oblique position, the head directed downward; when it s\\im> 

 backwards. on ihc contrary, the head is raised and the tins 

 depressed. In forward niolion the extremity of the tentacle- 18 

 hent down; in backward motion it is raised. This ordinary 

 swimming is sensibly more rapid than that of the Sepia, but if 

 the Calamary is disquieted it is oil' like a Hash. Kapid motion 

 is always rei ro<Ta(le ; when the fins are folded up and the funnel 

 brought into use. After having seen the rapidity with which 

 the Calamary darts through the water. I can understand how it 

 sometimes shoots out of the water and falls on the deck of 

 vessels. 



My Calamaries would not take nourishment : they died at the 

 end of a few davs. wiihout having modified until the last moment 

 their habitual acmity. 



Octopus vulgar in. The Poulpe is timid and hides itself under 

 rocks. Its arms touch the earth by their cups, and are bent 

 behind: t hose of the first pair are thus widely separated. The 

 sack is incurved from front to rear, and describes a curve with 

 the concavity inferior. Thus placed the animal examines all 

 that passes around it. If one <rives it something toeat.it is 

 seen to elongate slowly the first pair of arms as far as its prey. 

 and to draw it towards its month. I have never observed the 

 Sepia eat. and consequent ly do not know whether it grasps its 

 pr.-v b\ means of its leiiiacular arms or by the sessile arms of 

 the first pair. 



1 will not speak here of the chan^inirs of color in the Poulpe ; 

 thev are more varied and more rapid than those of the S>'/'n ; 

 and at the same time the rugosities of the head and sack appear 

 and disappear with uTcat rapidity. 



