166 



0. Nordgaard. 



Malangen, 100 — 200 m., on .stone; Hammerfest (1S94) on stone. 



I have not had any opportunity of seeing- Stimpson's work 

 (Invertebr. of Gr. Manan), so that I am unable to form any op- 

 inion as to the correctness of Smitt's conclusion that his f. Can- 

 dida is the form described by Stimpson as Lepralia Candida. But 

 as Vermel 1 ) classifies Stimpson's species as a Smittia, and also re- 

 marks that ..this species has been entirely misunderstood by Smitt 

 and others owinL; to the imperfection of the original description", 

 it is certainly safest to give Smitt's form the designation which I 

 have used here. 



Schizoporella stormi, n. sp. 



PL V, figs. 1, 2. 



On a stone form the North Cape (1894), a Schizoporella was 

 found, which I suppose to be a new species. The zooecia. which 

 were rather broad in proportion to their length, had a single row 

 of pores along the margin, together with a few small pores on 

 the frontal side (cf. fig. 1). No ooecia were present in the colo- 

 nies, but large avicularia were found under and a little to the side 

 of the oral aperture. The mandible was very pointed. The sur- 

 face of the zooecia was finely granulated and had weak radial 

 stripes. The zooecia were separated by distinct lines, and it may 

 be mentioned as a peculiarity that there is a crossline (1, fig. 1) 

 by the oral aperture. I think the species will easily be kept di- 

 stinct from others on account of the distinct opercular ribs (o. r.. 

 fit:'. 2). I have this species both from the North Cape and Ham- 

 merfest. 



1 have taken the liberty of naming this species after the 

 manager of the zoological collection, V. Storm, in Trondh.jem. 



Schizoporella hexagona, n. sp. 



PI. V, figs. 12, 13. 



Formed a little crust on stone from Kvauiangen II, 90 m. 



It is possibly this species which Smitt has illustrated on pi. 

 25, tig. 79'-) under the name of Mollia vulgaris, forma ansata. 



It is easily recognized by its six-sided zooecia whose frontwall 

 is punctured, but not perforated. The zooecia are separated by 

 distinct lines. On my specimen there were neither ooeiea nor 

 avicularia. 



A characteristic feature of this species is the large proximal 

 lobe of the eperculum (tig. 13). In the operculum b < h. 



Schizoporella levinseni, n. sp. 



PI. V, figs. 3. 4. 



Kvsenangen II, 90 m., on stone. 



The zoarium formed a crust on a stone. In a dried state, the 

 majority of the zooecia were of a deep red colour. The zooecia 

 have a few pores on the frontal wall, and between the pores 

 there are hollows (reminding one of a thimble). The ooecia. 

 which are nearly ball shaped, are furnished with deeper hol- 

 lows, but are not pierced. There were no avicularia on the 

 colonies which I have had an opportunity of examining. The 

 proximal border of the oral aperture is straight with a marked 

 sinus in the middle. 



The operculum has a lobe which answers exactly to the sinus 

 mentioned (fig. 4). In the operculum b > h. 



') l'roc. U. S. N. M., Vol. II, 1879, p. 192. 



2 ) Krit. Forteckn. Overs. Kgl. Vet. Akad. Forh. 18H7 (Bihang). 



I have taken the liberty of calling this species after the In- 

 spector of the Museum in Copenhagen, G. M. R. Levinsen. 



Schizoporella retieulato-punctata, Hincks. 

 pi. IV, figs. 16, 17. 



1867. Escharella porifera, forma edentata, Smitt, Krit. Forteckn. 

 etc. Ofv. Kgl. Vet. Akad. Forh. 1807. (Bihang), p. 9, 

 pi. 24, fig. 39. 

 1877. Lepralia retieulato-punctata, Hincks, Polyzoa from Ice- 

 land and Labrador. Ann. and Mag. Nat. Hist., ser. 4, 

 vol. 19, p. 103, pi. 10, figs. 3, 4. 

 1884. Lepralia retieulato-punctata, Loeenz, Bryozoen von Jan 



Mayen, p. 88. 

 18S7. Escharella retieulato-punctata, Levinsen, Dijmphna Togtets 



zool-bot. Udbytte, p. 318, pi. 27, fig. 4. 

 1895. Smittia retieulato-punctata, Noedgaaed, Syst. fort., Berg. 



Mus. Aarb. 1894—95, No. II, p. 27. 

 1897. Smittia retieulato-punctata, Bidenkap, Bryozoen von Ost- 



fSpitzbergen. Zool. Jahrb., vol. 10, p. 023. 

 1900. Schizoporella harmsworthi, Waters, Bryozoa from Franz 

 Josef Land. Journ. Linn. Soc. Zool., vol. 28, p. 65. pi. 

 9, figs. 10—12. 

 1903. „Lepralia" retieulato-punctata, Norman, Notes on the 

 Nat. Hist, of East Finmark. Ann. and Mag. Nat. Hist., 

 ser. 7, vol. 12, p. 122. 



HammeH'est (1894); the North Cape (1894); the Pors- 

 angerfjord. 200 m., Nordkyn (1894). 



In my list of Norwegian Cheilostomata 1 entered this spe- 

 cies as a Smittia, but on closer examination it became clear that 

 the species cannot be left there. Neither can it be considered to 

 be a Lepralia, as Hincks does. 



1 at first thought of setting it up as the type for a new genus, 

 together with Smitt's Escharella porifera, forma typica and the 

 one which I described as Smittia lineata, but on further consider- 

 ation, I have not ventured to start a new genus. In all three 

 species mentioned, there is a distinct sinus on the proximal margin 

 of the oral aperture, and notwithstanding that the opercula in 

 these three species vary from that which is usual in the genus 

 Schizoporella, they have, however, at any rate a trace of a proxi- 

 mal lobe. Watees has described a form, Schizoporella harmsworthi, 

 from Franz Josef Land, which he has identified with Smitt's 

 Escharella legentili, forma prototypa. This can hardly be correct. 

 True, the mouth in young zooecia of forma prototypa may bear a 

 certain resemblance to the oral aperture in Watees' species, but 

 there is a great difference in the developed zooecia, harmsworthi 

 having a sinus on the proximal margin (cfr. Waters 1. c. pi. 9, 

 fig. 10), while forma prototypa has a mucro (cfr. Bidenkap, Bryo- 

 zoen v. Ost Spitzbergen, pi. 25, fig. 3, and also the present work 

 pi. IV, fig. 24). 



Besides, in harmsirorthi the ooecia are perforated (cfr. Watees, 

 pi. 9, fig. 10), while in f. prototypa they are provided with hollows, 

 reminding one of a thimble. On the other hand, there seems to 

 be complete resemblance between harmsworthi and Smitt's Eschar- 

 ella porifera. forma edentata, but as this form was raised to the 

 rank of a species by Hincks in 1877. harmsworthi must give way 

 to retieulato-punctata which form I consider, as does also Watees, 

 to be a Schizoporella. In one specimen from the Porsanger Fiord, 

 I could plainly see the oral glands at the opening of the tentacular 

 sheath, as illustrated by Watees. 



