List of Freshwater Algæ. ^\ 



9. C. Holmiense Lund., Dem. Siiec, p. 49, tab. 2, fig. 20. 



ß integrum Lund., Nordst. Desm. Spetsb., pag. 28, tab. 6, fig. 5. 



Børgesen, Ferskvandsalg. Østgrønland, p. 20 (Hekla Havn, Røde 0, Hold with Hope). 

 Larsen, Freshw. Alg. East Grenl. p. 85 in diflerent localities from Kingorsuak 

 (60° 5') to Sabine (74° 30'). 



A few specimens were found in Vester Elv. 

 Long. = 58//; lat. = 30//. 

 Loc. Danmarks Havn. 



10. C. Meneghinii Bréb. 



Børgesen, Ferskvandsalg. Østgrønland, p. lu (Hekla Havn, Røde 0. 

 Larsen, Freshw. Alg. East Greenl., p. 86 (found in several localities from Kord- 

 lortok 65° 40'-Sabine 74° 30'). 



Forma De Bary, Conjugaten, p. 72, tab. 6, fig. 34. 

 Found once in a small lake. 

 Loc. H valrosodde. 



n. C. micro sphinctum Nordst., Desm. Ital. p. 33, tab. 12, fig. 9. 



Børgesen, Ferskvandsalg. Østgrønland, p. 16, tab. 1, fig. 6. 

 Larsen, Freshw. Alg. East Greenl., p. 86 (Kap Dalton, Sabine 0). 



The observed form quite agreed with that mentioned and figured 



in my above-quoted paper. I propose to call it f. groenlandica. 



Long. = 48//; lat. = 32/^; lat. isthm. = 20//. 



Found once in Vester Elv. 



Loc. Danmarks Havn. 



12. C. nasutum Nordst., Desm. Spetsb. p. 33, tab. VII, fig. 17. 



Forma granulata Nordst., 1. c. p. 34, Wille, Ferskv. Alg. Nov. 



Semlja. p. 42, lab. XII, fig. 30. 



Børgesen, Ferskvandsalg. Østgrønland, p. 14 (Hekla Havn). 



Larsen, Freshw. Alg. East Greenl. p. 86 (Kordlortok, Kap Dalton, Liverpool Kyst 

 in Harry Inlet). 



The form observed was in good accordance with the above- 

 mentioned figure by Wille. 

 Long. = 40/^; laL = 32/^. 



It was found in two collections from Vester Elv. 

 Loc. Danmarks Havn. 



13. C. ochtodes Nordst., Desm. arctoæ, p. 17, tab. VI, fig. 3. 



Boldt, Desm, Grønl. p. 29 (Kung Oskars hamn). 

 Børgesen, Ferskvandsalg. Østgrønland, p. 13 (Hekla Havn). 



Larsen, Freshw. Alg. East Greenl. p. 87 (in several jlocalities from Kordlortok 

 65° 40' to Sabine 74° 30'). 



Found in several collections from Vester Elv. 

 Long. = 88//; lat 59//. 

 Loc. Danmarks Havn. 



