39 



Microsyphar Kuck. 



M. Polysiphoniæ Kuck. Beiträge p. 29. 



Was found in the outer walls of Polysiphonia urceolata 

 which was mingled with Sphacelarin radicans, growing on the 

 under side of beetling rocks. 



Gr. o CO.: Ivigtut (L. K. R.). 



Geogr. distribution: Iceland, The Færoes, Scotland, Helgoland. 



Fam. Myriommaceœ. 



Myrionema. 



73. M. globosiim (Rke.) Fosl. Phycocells globosus K. Rosenv. 

 Deux. Mém. p. 86. 



Ralfsia Berk. 



74. R. deusta (Ag.) J. Ag., K. Rosenv. Grl. Havalg. p. 899, 

 Deux. Mém. p. 93. 



75. R. clavata (Carm.) Far!., K. Rosenv. Deux. Mém. p. 94. 



Norapion Kuck. 



76. S. Kjellmani (Wille) K. Rosenv. Deux. Mém. p. 95; 

 Lithoderma Kjellmani Wille, K. Rosenv. Grl. Havalg. p. 902. 



On ChcetomorpJia Melagonium. Gathered sterile in July. 

 Gr. or.: Tiningnekelak. 



Lithoderma Aresch. 



77. L. fatiscens (Aresch.) emend. Kuck., K. Rosenv. Deux. 

 Mém. p. 97, Grl. Havalg. p. 901. 



Abundant on stones having been fastened to the haptera 

 of species of Laminaria. The specimens fully agree with K. 

 Rosenvinge's description and figure (Deux. Mém. I.e. fig. 22). 

 The filaments are 10 — 14 « thick. Gathered in July; with young 

 unilocular sporangia in July, in a depth of 3—8 fathoms. 



Gr. or.: Kap Dalton. Turner Sund. Kap Borlase Warren, 

 Sabine Ö. 



