36 0. NORDGAARD. [2nd ARC. EXP. FRam 



Sept. 20, 1900, the head of Gaase Fjord, 3—20 fath. ; July 8, 1900, Ren 

 Bay; July 9, 1901. 



In several specimens there were ooecia, situated, as usual, at the 

 ends of the internodes. They were sometimes 1.04 mm. in length, with 

 a maximum width of 0.47 mm. 



Gen. Tubulipora, Lamarck. 



70. Tabulipora, ffabellaris, Fabr. 



Cf. Harmer, On the Development of Tubulipora, Quart. Journ. Mic Soc. 

 vol. 41, No. 3. 



July 22, 1900, the winter haven, young colonies on algae; Sept. 19, 

 1900, off Forvisnings Valley, 2—20 fath., on algs; July 8, 1901, Ren 

 Bay, on algae. 



Harmer has shown that the ooeciostome in this species is a flattened 

 tube, and the ooeciopore a slit. The latter, in specimens from the 2nd 

 Fram Expedition, was about 0.13 mm. in length. The largest of the 

 colonies found had a width of 9 mm. 



Gen. Idmonea, Lamouroux. 



71. Idmonea atlantica, Forbes. 



Cf. Waters, Bryozoa from Franz Josef Land, Part II. Cyclostomata, Ctenosto- 

 mata and Endoprocta. Journ. Linn. Soc, vol. 29. 



Sept. 19, 1900, off Forvisnings Valley 2-20 fath.; Aug. 16, 1901, 

 Gaase Fjord, about 7 fath. 



I could not find ooecia in any of the colonies, but on the whole it 

 must be said that there was a good resemblance to specimens of this 

 species that I have seen from more southern latitudes. 



In the specimens from the station off Forvisnings Valley, the length 

 of the zooecia was 0.52—0.65 mm., their thickness about 0.14 mm. The 

 distance between the rows of zocEcia was about 0.6 mm. 



In the specimens from the second-named locality, the length of the 

 zooecia was 0.65—0.78 mm., their thickness about 0.195 mm. 



The distance between the rows of zooecia was about 0.6 mm. 

 The number of zooecia in each row was found not to exceed 4 in any 

 specimen. 



Gen. Diastopora, Lamouroux. 



72. Diastopora obelia, var. arctica, Waters. 



Cf. Waters, Bryozoa from Franz Josef Land, Part II, Journ. Linn. Soc, vol. 29, 

 p. 171, pi. 21, fig. 1. 



