168 



0. Nordgaard. 



Escliara sincera, Smitt. 



n. HI, figs. 12—14 



Bålstad (Lofoten); The Østnes Fiord, 50—70 m., on coal; 

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

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



I have pre\iously classified this species as belonging to the 

 gcniLs Muaronella, and although, I now entei' it as an Escliara, 

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

 this genus. 



Discopora (Llmhonala) rernicot<n. Espee. 

 In the beach at „Glea", Røst. 



I have previously found this interesting foi'ra near Bergen. 

 The northern limit for the species is henceforth Lofoten. 



Diticopora (MncroncUaj pavonella, Aldee.') 

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

 iiolt vl894). From Spaeee Schneidee I have received colonies 

 which he took in the Lakse Fiord. 



Porella miiiuta, Noeman. 

 Groto, (i— 24 m., on algae. 



NiiE.MAN was the first to find this species in Norway, he took 

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



Pordla concinna, Busk. 

 J^i'eisund, lOu m., on Rhijnchonella ])siitacea; Mehavn (1894), 

 on shells. 



Porella aperta. Boeck.-) 

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



Porella acuilrostris. Smitt. ^) 

 Svolvær (1894), on coal from the bottom. 

 The species is a new one to our fauna. 



Porella princeps, Noeman. 



PI. IV, figs. 21—23. 



1892. Monoporclla spinuliffra. var. praeclara. Hincks, „The 



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



ser. 6, vol. 9, p. 152, pi. 8, fig. 3. 

 1903. Porella princeps, Noeman, „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 Noeman, he has availed 

 himself of the opportunity of describing „a Greenland Porella'\ to 

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

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

 material from Mehavn (Finmark, 1 894), I found a little red colony 

 on Neptunea despiecta. There is perfect agreement with Nokman's 

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

 1 have illustrated the characteristic operculum (PI. IV, fig. 21). 



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

 cated, both in HiNCKs' and Noeman's figures. P.clow the swollen 

 frontal wall is the chambei' of the avicularium. From this chamber 



') Cfr. S. F. Harmer, On the Morphology of the Cheilostoumta. Quart. 

 Journ. Mic. Sci. Vol. 46, N. S., 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, fig. 23). The mand- 

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



This species has pre\iously been mentioned from St. Lawrence 

 (HiNCKs). Noeman 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 glaclata, Watees. 

 PI. V, fig. ,5—7. 



1868. Escliara cervicornis, forma lepraliae, Smitt, Ofv. Kgl. Vet. 



Akad. F8rh. 1867 (Bihang), p, 23, pL 26, figs, 136, 137. 



1900, Porella glaciata, Watees, 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, Watees adds, in the 

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

 interrogation, Escliara cervircornis, f. lepraliae. Smitt. 



Watees remarks (1. c. p. 78): — «The peristome is raised at 

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

 mandible wthin 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 Watees' 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 strutna, Noeman. 

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

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

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



Porella lævis, Fleming. 

 PI. Ill, fig. 15. 



Moskenstremmen, 90 m.; Bålstad, 150 m.; Mortsund III, 

 100 m.; Malangen, 100—200 m,; The North Cape (1894), 



Porella saccata, Busk.') 

 PI. rn, fig. 16. 

 Breisund, 100 m.; The North Cape (1894); T'he Porsanger 

 Fiord, 200 m. 



Porella propinqua, Smitt, 



Pl. IV, figs. 18—20 b. 



Escliara 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, 



fig.s. 5—7. 

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



27. Berg. Mus. Aarbog, 1894—1895. 

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



Jahrbucher, B. 10, 1897, p. 624. 

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



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

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

 North Cape (1894), on hydroids and Menipca: Mehavn (1894). 



') Cfr. Waters, F. J. B. ; ji. 81. 



