List of Freshwater Alffæ. 



83 



Specimens agreeing very well with Nordstedt's description and 

 figure were found in two collections from Vester Elv. 

 Long. = 62— 65 /i ;' lat. = 40-47 //. 

 Loc. Danmarks"^ Havn. 



19. С. spetsbergense Nordst., Desm. Spetsb., p. 27, tab. 6, fig. 3. 



Larsen, Freshw. Alg. East GreenL p. 85) (Liverpool Kyst in Hurry Inlet\ 



This arctic species hitherto only known from Jan Mayen, Spitz- 

 bergen, NovaJZembla and Ihe above mentioned locality in East 

 Greenland has been found in two collections from Vester Elv. 



Long. = 61,y, lat. = 32//. 



Loe. Danmarks Havn. 



20. С. subcrenatum Hantzsch.in Rabenh. Alg. No. 1213; Nordstedt, 

 Desm. arct., p. 21. tab. 6, fig. 10-11. 



Boldt, Desm. Grønl. p. 18 (Kung Oskars hamn). 

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



Larsen, Freshw. Alg. East Greenl., p. 8Ü (in several localities from Kordlortok 

 65° 40' to Sabine 74° 30'). 



Long. -=32/^; lat. --- 29//. 



Loc. Found in two collections from Vester Riv. 



21. С. subspeciosum Nordst., Desm. ard. 

 p. 22, tab. 6, fig. 13. 



Børgesen, Ferskvandsalg. Østgrønland, p. 16. 



A form agreeing very well with the de- 

 scription and figure of Nordstedt was found 

 in a collection from Lille Snenæs. 



Long. = 42/^; lat. = 30//. 



A zygospore was found of this species 

 (Fig. 4). This was globose, furnished with rather 

 long furcate-emarginate spines, each of which 

 arises from a broadly conical base provided 

 with teeth. 



Lat. zygosp. cum. spin. = 54//. 



Lat. zygosp. sine spin. = 40//. 



Loc. I^ille Snenæs. 



Fig. 4. С subspeciosum Nordst. 

 A Zygospore. (,•'■■'" 11.) 



22. С. Turpinii Bréb., Liste Desm., p. 127, tab. 1, fig. 11. 



Boldt, Desm. Gronl, p. 24 (Kung Oskars hamn). 



Børgesen, Ferskvandsalg. Østgrønland, p. 18, tab. 1, fig. 7 (Hekla Havn). 



Larsen, Freshw. Alg. East Greenl., p. 90 (in several localités from Kordlortok 

 65° 40' to Sabine 74° 30). 



The specimens found agreed very well with the form (forma 

 gallica Lund.) mentioned in my earlier paper. 



Long. = 62/^ ; lat. == 54//. 



Loc. Danmarks Havn; Vester l^lv. 



