KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. Ik7 
Fam. ULVACEZ (Aac.) Wirrr. 
Pl. Scand. p. 17; Aa. Syst. Alg. p. XXX; lim. mut. 
Gen. Enteromorpha (Link) Harv. 
Man. p. 173; Link. Epist. p. 5; ex parte. 
Enteromorpha clathrata (Rorn) Grev. 
Alg. Brit. p. 181. Conferva clathrata Roru, Cat. Bot. 3, p. 175. 
Deser. Enteromorpha clathrata Autn. Enterom. p. 43. 
f. Agardhiana Lr Jou. 
Liste Alg. Cherb. p. 49. 
Deser. Ulva clathrata @ Agardhiana Le Jou. 1. c. 
Syn. Enteromorpha clathrata Dicktm, Alg. Cumberl. p. 239 (?); Alg. Nares p. (7). 
» » Kueen, Nord]. Alg. p. 40. 
Habitat. It is usually litoral, sometimes sublitoral according to Kirpy, attached 
to stones. In general it is gregarious, but does not occur in any greater numbers 
together. I have found it only on sheltered coasts. It would seem however from the 
account of Kiren as if it should live at Nordlanden even in exposed localities. Only 
sterile specimens are known from the Polar Sea. 
Geogr. Distrib. This species is known to occur in the Norwegian Polar Sea and 
reported from Baffin Bay. In other parts of the Arctic waters it has not been met 
with. It seems to me probable that Dick1n’s statement of its occurrence in Baftin Bay 
in the high North depends on fine, richly branching forms of E. compressa having been 
somehow confounded with £. clathrata. However, not having myself seen the specimens 
determined by Dicxim, I cannot decidedly dispute the correctness of his statement. The 
present species is rather abundant, but not common, in the Norwegian Polar Sea. Its 
northernmost point would be Port Sheridan in Smith Sound Lat. N. 82° 27’. 
Localities: The Norwegian Polar Sea: Nordlanden common and abundant; Fin- 
marken pretty plentiful at Oxfjord and Talvik. I have not observed it elsewhere. 
Baffin Bay: Cumberland Sound, Hayes Sound, Buchenau Strait, and Port She- 
ridan according to Dickie. 
Enteromorpha intestinalis (L.) Linx. 
Epist. p. 5. Ulva intestinalis L. Spee. Pl. p. 1163. 
f. genuina ALN. 
Enterom. p. 18. 
Descr. Enteromorpha intestinalis a genuina AHLN. |. ec. 
Fig. » » Kurz. Tab. Phye. 6, teow. 
Exsice. » » Arescu. Alg. Scand. exsice. N:o 122. 
