178 PROCEEDINGS OF THE AMERICAN ACADEMY 



tschatka.* Kjellman also credits it to the North Pacific. f It is, 

 indeed, unknown either in the American Arctic Sea t or in the Si- 

 berian Sea ; but the former has uever been explored to any extent, 

 and although the latter has been more thoroughly searched, the phy- 

 sical conditions over the greater portion of it are unfavorable to the 

 growth of any algce. § The species reappears in the Murman Sea,|| 

 extends into tlie White Sea, If and thence along the northern coasts of 

 Norway.** In the Greenland Sea it occurs at Spitzbergen,tt and at 

 " Beeren Eiland."t$ It is found in Baffin's Bay on the western coast 

 of Greenland, §§ and extends down along the eastern coast of North 

 America nearly to Cape Cod.|||| 



From the scanty references to the occurrence of Saccorhiza der- 

 matodea in the North Pacific, one might infer that it is very scarce 

 there. The locality in the Arctic Ocean where it is most abundant is, 

 according to Kjellman, the northern coast of Norway ; but even there, 

 he says, " it does not occur in any such numbers as are comparable in 

 any way with other Lmninariacece ." On page 9G of his "New Eng- 

 land Algai," Farlow has called attention to the fact that this species 

 is of much rarer occurrence on the New England coast than almost 

 any other species of the same family ; and that, while rare at its 

 southern limit in the region of Boston, Mass., it becomes more abun- 

 dant on the coast of INIaine. My own experience in collecting on 

 the New England coast fully confirms this. It has never been 

 found growing south of Nahant, Mass., where it is ordinarily rather 

 rare. Farther north at Portland and Mount Desert Island, Maine, 

 it is more plentiful, while at Eastport, Maine, it is said to be fairly 

 abundant. 



Habitat. — Eaton HIT records that a specimen was brought up by the 

 dredge through twenty-five fathoms of water off Campobello Island, 



* Riipr., Tange Och., pp. 352 and 409, 1847. 



t Arct. Alg., p. 38, 1883. 



\ Cf. Kjellman, he. cit., pp. 4 and 5, for the divisions of the Arctic Sea. 



§ Kjellm., he. cit., p. 26. 



II Kjellm., Alg. Murm., p. 36, 1877. 



1 L. Bcvrll, Post. & Kupr., 111. Alg., p. ii, 1840 (>/<• Areschoug). 

 ** Aresdi., Obs. Phyc., Part III. p. 11, 1875. Kjellm., Arct. Alg., p. 225. 

 tt J. Ag., Spets. Alg. Till., p. 31, 18G8. Kjellm., Arct. Alg., p. 225. 

 Jt Kjellm., Arct. Alg., p. 225. 

 §§ J Ag., Griinl. Lam. och Fuc, p. 11, 1872. 



lill De la Pyl., Ann. Sci. Nat., Ser. I.Tom. IV. p. 179, 1824 ; Fl. Terre Neuve, 

 p. 48, 1829. Fallow, N. E. Alg., p. 95, 1881. 

 IfH Trans. Conn. Acad., Vol. II. p. 343, 1873. 



