134 



28. Ch^tomorpha Melagonium, Kiitz. Ner. Bor. Amer. 3, p. 85. 

 Hab. Boots of large Algae, Whalefish Islands, Dr. Lyall. 



29. Ch^tomoepha Piquotiana, Mont. Ner. Bor. Amer. 3, p. 85. 



Hab. Floating in the sea, near Whalefish Islands, Davis's Straits, Dr. Lyall. (A 

 single filament only !) 



30. HoRMOTEiCHUM CarmichaelU, Harv. Ner. Bor. Avier. 3, p. 90. 

 Hab. Wellington Channell, Dr. Lyall. 



31. HoRMOTEiCHUM boreole, Harv. Nei'. Bor. Amer. 3, p. 90. 

 Hab. Whalefish Islands, Dr. Lyall. 



32. HoEMOTEiCHUM WormsMoldU, Kiitz. Ner. Bor. Amer. 3, p. 91. 



Hab. Dredged in 6 fathoms, in Queen's Channel, 76° 29' N., 96° 13' W., Dr. Lyall. 

 Coast of Greenland, Lyngbye. 



33. MouGEOTiA (species innominata.) 



Hab. In fresh water. Isle of Disco, Dr. Lyall. 



34. Lyngbya m,uralis, var. aquatica. Ner. Bor. Amer. 3, p. 104. 

 Hab. In pools of fresh v?ater, Whalefish Islands, Dr. Lyall. 



35. Ulva latissima, L. Ner. Bor. Amer. 3, p. 59. 



Hab. Isle of Disco, and dredged in Queen's Channel, Dr. Lyall. 



36. Ulva bullosa, L. Ner. Bor. Amer. 3. p. 60. 



Hab. In pools of fresh water, Whalefish Islands, Dr. Lyall. 



37. Enteromorpha intestinalis, Link. Ner. Bor. Amer. S p. 57. 

 Hab. Whalefish Island, Dr. Lyall. (Probably universally spread.) 



38. OsciLLATORiA corium, Ag. Harv. Man. Ed. 1 p. 166. 



Hab. On stones in a running stream. Wellington Channel, Dr. Lyall. 



39. NoSTOC arcticum, Berk. Ner. Bor. Amer. 3, p. 113. 

 Hab. Assistance Bay, lat. 75° 40' N., Dr. Sutherland. 



40. NosTOC verrucosum, Vauch. Ner. Bor. Amer. 3, p. 114. 



Hab. Pools of fresh water. Isle of Disco, and at Beechey Islands, Dr. Lyall. 



41. NosTOC Sutherland\J)\.Q)siQ. Ner. Bor. Amer. 3, p. 114. 

 Hab. Winter quarters, Baffin's Bay, Dr. Sutherland. 



42. NosTOC microscopicum, Carm. Ner. Bor. Amer. 3, p. 115. 

 Hab. Baffin's Bay, Dr. Sutherland. 



