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to that in the 2 other Norwegian species. Inner ramus of 4th pair of legs, 

 however, wanting the plug-shaped process between the 2 apical setse 1 ). Last 

 pair of legs extremely small, with the free joint nodiform. 



Colour not yet ascertained. 



Length of adult female scarcely 0.46 mm. 



Remarks. I cannot doubt that the above-described form is that recorded 

 by Giesbrecht as 0. mituita. Beside by its small size, it differs from the 2 

 other Norwegian species by the form and relative size of the genital segment, 

 and by the very small innermost caudal seta. 



Occurrence. Two female specimens of this form were recently found 

 among some pelagic Copepoda kindly sent to me from Mr. Nordgaard, who 

 obtained them in the Herlefjord near Bergen. 



Distribution. North Atlantic Ocean, Mediterranean, Pacific, Indian Ocean. 



') True, Giesbrecht, asserts that such a process is present; but I suspect that the leg 

 he figures is in reality not the 4th, but the 3rd, in which this process is well marked. 



