40 0. NORDGAARD. [2nd ARC. EXP. FRAM 



but no systematic distinguishing feature could be discovered. Until the 

 arctic BowerbanMa proves to be different from imbricata therefore, the 

 name arctica must be set on one side. 



Some Rennarks on certain Species and their Distribution. 



I thus believe that among the specimens brought back by the 2nd 

 Fram Expedition, I have demonstrated the occurrence of the following 

 species : 



1. Cremellaria loricata, Lin. 



2. Menipea gracilis, I. v. Beneden. 

 3.* — elongata, Smitt. 



4. Scrujpocellaria scabra, I. v. Beneden. 



5. Bugula murrayana, Johnston. 



6 a. — — var. fruticosa, Packard. 



6.* — harnisworthi, Waters. 



7.* Cellaria articulata, Fabr. 



8. Flustra membranaceo-truncata, Smitt. 



9.* — serrulata, Busk. 



10. Membranipora catenularia, Jameson. 



11. — craticula, Aldfr. 



12. — arctica, d'Oheiuhy. 



13.* — unicornis. Flem., var. armifera, Hinkcs. 



14.* — nigrans, Hincks. 



15. — cymbceformis, Hincks. 



16. —7 trifolium, S. Wood. 



17. Cribrilina annulata, Fabr. 



18. Harmeria scutulata. Busk. 



19. Boryporella spathuliferra, Smitt. 



20. Porina tubulosa. Norman. 



21. Hippothoa hyuUna, Lin. 

 22.* — expansa, Dawson. 



23. — cUvaricata, Lamouroux. 



24.* Leieschara subgracile, d'Orbigny. 



25. Schisoporella plana, Dawson. 



26.* — biaperta, Michelin. 



27. — lineata, Nordgaabd. 



28. — reticulato-punctata, Hincks. 



29. — stormi. Nordgaard. 



30.* — bispinosa, Nordgaard, n. sp. 



31. — levinseni, Nordgaard. 



32.* — condylata, Nordgaabd, n. sp. 



33.* — producta, Packard. 



3i.* — bidenkapi, Nordgaard, n. sp. 



35.* Eschara suturata, Nordgaard, n. sp. 



36. — nordlandica, Nordgaabd. 



37. — Mpposus, Smitt. 



38. — sincera, Smitt. 



