1898-1902. No. a] BRYOZOA. 9 



from Queen Charlotte Islands (Hincks), and from Greenland (Fabricius, 

 Busk, Norman, Vanhoffen). I know of only one locality in the east 

 arctic waters where it is found, namely Ice Fjord in Spitsbergen, from 

 which place it is recorded by F. A. Smitt K 



Gen. Flustra, Lin. 



8. Flustrsb membranaceo-truncata,, Smitt. 



Syn. BiDENKAP kat., p. 9. 



September 9, 1900, off Forvisnings Valley, 2—20 fathoms; 



September 20, 1900, the head of Gaasefjord, 3—20 fathoms. 



There were numerous colonies from the head of Gaase Fjord, with 

 irregular zoaria, sometimes with narrow-leaved lobes. They were often 

 attached to worm-casts. The length of the zooecia was 1.2—1.3 mm. 



9. Flustra, serrnlata, Busk. 



PI. I, fig. 6. 



1881. Flustra serrulata, Busk, Journ. Linn. Soc , Vol. 15, p. ^Si, pi. 13, figs. 2, 3,4. 

 1886. Memhranipora serrulata, Levinsen, Bryozoer fra Kaiahavet, p. 12, pi. 27i 



figs. 1 & 2. 

 1896. Flustra serrulata, Waters, Journ. Roy. Micr. Soc, 1896. p. 283, pi. 8, figs. 



1, 2 & 3. 

 1896. Flustra serrulata, Hennig, Ofvers. Kgl. Vet. Akad. FOrh. 1896, No. 5, p. 355. 



July 22, 1900, the winter haven, about 30 fath. ; August 7, 1900, 

 Ost Cape, 10 — 25 fath.; incrusting hydroids; August 8, 1900, the win- 

 ter haven, sometimes incrusting EscJiaropsis sarsi; Sept. 9, 1900, off 

 Forvisnings Valley, 2 — 20 fath.; July 8, 1901, Ren Bay, incrusting 

 Cellaria articulata; July 18, 1901, the mouth of Gaase Fjord; July 19, 

 1901, lower part of Gaase Fjord. 



At some stations, this species has occurred in great quantities, for 

 instance, at the winter haven, about 30 fath. (July 22, 1900), It gener- 

 ally formed free colonies (fig, 6), but also incrusted other objects, and 

 was thus to some extent single-layered in its structure. There was no 

 trace of either ooecia or avicularia. The length of the zooecia in speci- 

 mens from the winter haven was about 1.2 mm., their width 0.4 mm. 

 In specimens from Ren Bay (July 8, 1901), the corresponding measure- 

 ments were 1.3 and 0.46 mm. There were two lateral and two distal 

 rosette-plates. 



Ofvers. Kg]. Vet. Akad. FOrh. 1867, pp. 361, 384, PI. 20, fig. 17. 



