16 M. FOSLIE. [1905 



reproductive organs. Cp. Solms, Corall. Monogr. p. 15 and Foslie, 

 Lithoth. Adr. Meer. etc. p. 19. 



The species in question is frequently abundant from Nordland 

 in Norway southward at least as far as Finistere, but apparently 

 less numerous in the Mediterranean and the Adriatic. In the most 

 northern part of Norway it is rather commonly dispersed, but not 

 occurring in any great number. It seems to be rare on the south 

 coast of Iceland and scarce at the Faeroe islands. This alga is 

 nearly always richly provided with reproductive organs, and such 

 ones have been found all the year. 



Area: Norway: From Berlevaag 1 ) in East Finmarken to 

 Tromso(!), Nordland (Kleen) and southward (!); Sweden, west 

 coast (Areschoug and others!); Denmark (Rosenvinge!); the 

 Baltic: Bornholm (Rosenvinge!); Western Baltic (Reinke); 

 Helgoland (Sonde r, Kuckuck!); S. W. Iceland: Reykjavik 

 (Jonsson!); the Fasroes (Borgesen!); the Orkneys (Traill); 

 the British Isles ! The Atlantic coast of France ! The Mediterranean ! 

 The Adriatic (Hauck, Kuckuck!); the Black Sea (Dec ken- 

 bach!); the Azores (Sauvageau!); the Atlantic coast of North 

 America: Isles of Shoals, Mass. (Far low!), Cape Rosier, Me. 

 (Collins!), Point Pleasant, Halifax, N. S. (Mack ay!) 2 ) 



2. Lithothamnion Iceve (Stromf.) Fosl. 



List of Lithoth. (1898), p. 7, Rev. Syst. Surv. Melob. (1900), p. 15; Litho- 

 phyllum Iceve Stromf. Algveg. Isl. (1886), p. 21, t. I, fig. 11 — 12; Fosl. Contrib. 

 I (1890), p. 10. 



The species probably occurs farther to the east, but as it has formerly 

 been in part confounded with Lithoth. losve, I only record it frem the 

 most eastern locality from where 1 now possers specimens. 

 A specimen from the Pacific Beach near San Diego on the coast of Cali- 

 fornia, collected by Mrs. Snyder and communicated to me by Mr. 

 Collins, much resembles L. Lenormandi f. squamulosa in habit. The 

 cells, however, are often a little coarser than frequently seen in this spe- 

 cies, but a few conceptacles occurring resemble those in South-European 

 specimens. On the other hand the specimen somewhat approaches L. 

 squamuliforme from Australia. Therefore, as only a solitary specimen 

 and apparently a not well developed one has been examined, I do not 

 venture to record the species in question from the said area. 



