392 



p. Kramp. 



mens. In all other regards they agree with the Greenland speci- 



mens. 



C. Johmtoni has pointet teeth as a rule, but the teeth can be 

 rounded (see Broch 1905 (15) p. 12); in the summer of 1910 I found 

 С Johnstoni with rounded teeth at Hellebæk in the northern part of 

 the Sound; these specimens show the following differences from 

 Campannlaria sp. from Iceland and Greenland. The hydrothecae are 

 considerably smaller, the teeth longer, the space below the diaphragm 

 larger, rounded below, ^ = ^, the hydrothecal wall thicker. The 

 form of the gonothecae is sufficient to show that Campannlaria sp., 

 Greenland, is not identical with C. Johnstoni, but to make certain 

 that the Icelandic Campannlaria, which is sterile, is identical with 

 the Greenland species, I have made measurements of quite a number 

 of specimens, from Greenland, Iceland and Hellebæk. The results 



obtained show, that the Greenland and 



^ the Iceland specimens agree extremelj'^ 



; well, whilst C. Johnstoni gives quite 



A 



ditYerent figures. 



The dimensions measured are 

 follows (see text-fig. 8). 



L = Length of the hydrotheca. 

 Diameter of the aperture. 



as 



A 

 T 

 D 



N 



Height of the teeth. 

 Diameter of the diaphram. 

 Number of teeth. 

 All the lengths are expressed in /л 



^ and for each average number is given 



the 



a being the 



Text-fig. 8. 

 These measurements 



average error, :^-^= 

 standard deviation, n the number of in- 

 dividuals, 

 show distinctly the differences mentioned 

 above, especially when we consider the proportions between the 

 different dimensions. There is no doubt, that Campannlaria sp., 

 Greenland, and Campannlaria sp., Iceland, are the same species, and 

 the proportions of the form in connection with the form of the 

 gonothecae show that they are not identical with С Johnstoni. 



Occurs sparingly at 3 stations, on Delesseria and hydroids. 2 gono- 

 thecae have been seen (St. 71 a). 

 Hah.: St. 68 a, 69, 71a. 

 Depth: 20—40 m. 



Geographical distribution: N. E. Greenland, Iceland. 

 Alaska (?). 



