Bryozoa. 463 



St. 63, Stormbugt, 20— 40 m. 



St. 68 a, Øresund, 40-60 m. 



St. 69, Stormbugt, 20-30 m. 



St. 71 a, off Cape Bismarck, 30—40 m. 



St. 95 a, The Sound between Renskæret and Maatten, 50— 100 m. 



Porella concinna . Busk. 



Porella lœvis, forma Lepraliœ Smitt, op. cit. 1867, Bihang, pp. 21 and 

 136, Tab. XXVI, figs. 109—111, 115—119. 



— concinna Hincks, op. cit. p. 223, PI. XLVI. 



— — Lorenz, op. cit. p. 89, Tab. VII, fig. 7. 



— — Osburn, op. cit. p. 247, PI. XXVII, figs. 67, 67 a, 



67 b, 68. 



As already pointed out by Hincks, this species is subject to 

 great variation, and such a variation is also presented by the nu- 

 merous colonies incrusting stones, which have been brought home 

 by the Denmark expedition. I have no doubt but that a close exa- 

 mination of the various varieties and of their mutual relation would 

 be of the greatest interest, but as it ought to be based on so large 

 a material as possible, it will be most convenient to publish the re- 

 sult of such an examination in the report on the bryozoan material 

 of the Ingolf-expedition, which shall contain a revision of the Bryozoa 

 material from Greenland, Iceland and the Faroes contained in our 

 Zoological Museum. 



St. 15, Lat. 76^35' N. Long. 18°26' W., 150 m. 



St. 71a, off Cape Bismarck, 30— 40 m. 



St. 72, Danmarks Havn, 10 — 15 m. 



St. 69, Stormbugt, 20— 30 m. 



Porella acutirostris Smitt. 



Porella acutirostris Smitt, op. cit. 1867, Bihang, pp. 21 and 132, Tab. 

 XXVI, figs. 106—108. 



— — Hincks, Ann. Nat. Hist. ser. 6, Vol. Ill, p. 429, PI. 



XXI, fig. 5. 



— — Waters, op cit. p. 83, PI. X, figs. 1—5. 



— — Osburn, op. cit. p. 248, PI. XXVII, figs. 69, 69 a. 



Two small colonies on Algæ. 



St. 72, Danmarks Havn, 10—15 m. 



Porella plana Hincks. 

 Porella Skenei Ell. & Sol., forma plana Hincks, Annais Nat. Hist., ser. 

 6, vol. 1, p. 221, PI. XIV, fig. 8. 



XLIII. 35 



