PREFACE. 

 The Cephalopoda have in our country only been studied by very 

 few zoologists (G. O Sars, A. Appellof), and on the occurence 

 of these animals in the Trondhjemfjord almost nothing has been 

 written. My eyes are certainly not trained in a comparative stiidy 

 of many different species of Cephalopoda, but, however, I think it 

 proper to give a Kst of forms and finds, partially with some bio- 

 logicai notes. 



