n;s 



O. Nordgaard, 



Eschara sinct ra, Smitt. 



PI. Ill, figs. 12—14. 



Balstad (Lofoten); The Ostnes Fiord, 50—70 m.. on coal; 

 Digermulen, 150 m., on stone; The Lyngen Fiord, 250 m.; The 

 .lokel Fiord II, 80 m.; The North Cape (1894); Mehavn (1894). 



1 have previously classified this species as belonging to the 

 genus Mucronella, and although, I now enter it as an Eschara. 

 it is not at all because it can be said to be any typical form of 

 this genus. 



Discopora (Umbonula) verrucosa, Espee. 



In the beach at „Glea", Host. 



I have previously found this interesting form near Bergen. 

 The northern limit for the species is henceforth Lofoten. 



Diseopora (Mucronella) pavonella, Alder. 1 ) 

 The Kirk Fiord, 100 m.; The Trold Fiord Sund, 40 m.; Svaer- 

 holt (1894). From Sparre Schneider I have received colonies 

 which he took in the Lakse Fiord. 



Porella minuta, Norman. 



Groto, 6 — 24 m., on algae. 



Norman was the first to find this species in Norway, he took 

 it in the Bog Fiord and the Lang Fiord (East Finmark). 



Porella concinna, Husk. 

 Breisund, 100 m., on Rhynchonella psittacea; Mehavn (1894), 

 on shells. 



Porella aperta, Boeck. 2 ) 

 The Beier Fiord, 30 — 150 m., on Pecten vitreus. 



Porella acutirostris, Smitt. 3 ) 

 Svolvaer (1894), on coal from the bottom. 

 The species is a new one to our fauna. 



Porella princeps, Norman. 

 pi. IV, figs. 21—23. 



1892. Monoporella spinulifera, var. praeclara, Hincks, „The 



Polyzoa of St. Lawrence". Ann. and Mag. Nat. Hist.. 



ser. 6, vol. 9, p. 152, pi. S, fig. 3. 

 1903. Porella princeps, Norman, „Notes on the Natural History 



of East Finmark". Ann. and Mag. Nat. Hist., ser. 7, 



vol. 12, p. 114, pi. 9, figs. 8—11. 

 In the work already mentioned of Norman, he has availed 

 himself of the opportunity of describing „a Greenland Porella 11 , to 

 which he has given the name above. This species has now also 

 been shown to be European; for on looking through some dried 

 material from Mehavn (Finmark, 1894), I found a little red colony 

 on Neptunea despecta. There is perfect agreement with Norman's 

 description, but so as to prevent any doubt with regard to identity, 

 I have illustrated the characteristic operculum (PL IV, fig. 21). 



Below the oral aperture of the zooecium, a swelling is indi- 

 cated, both in Hincks' and Norman's figures. Below the swollen 

 frontal wall is the chamber of the avieularium. From this chamber 



M Cfr. S. F. Harmer, On the Morphology of the Cheilostomata. Quart. 

 Journ. Mic. Sci. Vol. 46, N. 8., p. 296. 



2 ) Cfr. Norman, Finmark Polyzoa, p. 112 and Waters, F. J. B., p. 83, 

 pi. 10, figs. 6, 7. 



3 ) Cfr. Waters, F. J. B., p. 83, pi. 10, figs. 1—5. 



a passage goes to the lateral walls. (PL IV, rig. 23). The mand- 

 ible of the avieularium is very small. (PL IV, fig. 22). 



This species has previously been mentioned from St. Lawrence 

 (Hincks). Norman speaks of it (1. c, p. 115) as being „taken by 

 the Valorous", 1875, off Holsteinborg, W. Greenland, „in 57 

 fathoms". Mehavn in Finmark now comes as a third locality. I 

 have also found a little colony on a stone from Hammerfest (1894). 



Porella glaciata, Waters. 

 pi. V, fig. 5—7. 



1868. Eschara cervieomis, forma lepraliae, Smitt, Ofv. Kgl. Vet. 



Akad. Fciiti. 1867 (Bihang), p. 23, pi. 26, rigs. 136, 137. 



1900. Porella glaciata. Waters, Bryozoa from Franz Josef Land. 



Journ. Linn. Soc. Zool. Vol. 28, p. 78. text figure 2, 3. 



Mehavn (1894). on Neptunea despecta. 



As a synonym for his Porella glaciata, Waters adds, in the 

 work above referred to, the designation, followed by a note of 

 interrogation, Eschara cervircornis, f. lepraliae. Smitt. 



Waters remarks (1. c. p. 78): — ;,The peristome is raised at 

 the side, the avicularian chamber is wide and distinct with the 

 mandible within the peristome, but on the top of a more or less 

 tubular projection." If this belongs to the description of glaciata. 

 it is not correct. But, on the other hand, this description is ap- 

 plicable to Porella propinqua. I have no doubt that Smitt's forma 

 lepraliae and Waters' glaciata are identical. It also seems to be 

 certain that it was glaciata which I took at Mehavn in Finmark. 

 Smitt's specimens were from Greenland, so that the distribution 

 of the species as at present known is: — Greenland. Finmark, 

 Franz Josef Land. 



Porella struma, Norman. 

 Balstad (Lofoten), 80 m. ; Digermulen, 150 m.; Malangen, 

 100—200 m.; The Jokel Fiord, 100 m.; Ingohavet, 300 m.; The 

 North Cape (1894); The Porsanger Fiord, 70 m. 



Porella Imvis, Fleming, 

 pi. in, fig. 15. 



Moskenstrommen, 90 m.; Balstad, 150 m.; Mortsund III, 

 100 m.; Malangen, 100—200 m.; The North Cape (18941. 



Porella saceata, Busk. 1 ) 

 pi. Ill, fig. 16. 



Breisund, 100 m.; The North Cape (1894); The Porsanger 

 Fiord, 200 m. 



Porella propinqua, Smitt. 

 PI. IV, figs. 18—20 b. 



Eschara propinqua, Smitt (part.), Ofvers. af Kgl. Vet. Akad. Forh., 

 1867 (Bihang), pp. 22, 146, pi. 26, figs. 126—129. 



Lepralia propinqua. Hincks, Polyzoa from Iceland and Labrador. 



Ann. Mag. Nat. Hist., ser. 4, vol. 19, p. 103, pi. 10, 



figs. 5—7. 

 Smittia propinqua, Nordgaard, Syst. fortegn. marine polyzoa, p. 



27. Berg. Mus. Aarbog, 1894—1895. 

 Smittia propinqua, Bidenkap, Bryozoen von Ost-Spitzbergen, Zool. 



Jahrbiicher, B. 10, 1897, p. 624. 

 Smittia propinqua, Bidenkap, Die Bryozoen, II. Theil. Fauna 



arctica (von Romer und Schandinn), B. I, p. 518. 

 Hammerfest (1894), on hydroids and Bugula murrayana; The 

 North Cape (1894), on hydroids and Menipea; Mehavn (1894). 



!) Cfr. Waters, F. J. B. ; p. 81. 



