100 THE CANADIAN NATURALIST. [March 



been entirely neglected ; and he expressed a hope that some of 

 them would qualify to supply the omission. The study had long 

 engaged the earnest attention of celebrated naturalists. He 

 enumerated the following species, which are fully described in 

 Dr. Harvey's Nereis Boreali-Americana. 



Alaria escidenta — On rocks about low water mark, extending 

 south to Cape Cod. 



A. Pylaii. — On rocks near low water mark, Newfoundland. 

 Laminar ia Fascia. — A very small and delicate plant, only a 

 few inches in length, found in Halifax harbor, on rocks and stones 

 near low water mark by Prof. Harvey — widely distributed — 

 occurring not only at Halifax and on the New York coast, but 

 also on the Atlantic and Mediterranean shores of Europe, and at 

 the Falkland Islands. Specimens of the allied L. dehilis were 

 shown from Kutzing. 



L. lorea. — Shores of Newfoundland. 



L. dermatodea. — On rocks at and below low water mark, 

 Newfoundland. 



L. saccharina. — At and below low water mark. Harvey gives 

 it as common on rocky shores from Greenland to New York, and 

 cast up from deeper water on the New Jersey coast. Prof. 

 Lawson has a specimen collected by Dr. Rae at Montreal 

 Island. 



L. longlcruris. — Abundant below low water mark along the 

 shores of Halifax harbor, at Point Pleasant and around the 

 wharves at the city. The species abounds along the shores from 

 Greenland to Cape Cod, and occurs in Newfoundland. It occurs 

 likewise in Europe, but there the range is quite northern as it 

 scarcely extends beyond the limits of the Arctic Sea^ whence 

 ragged fragments are sometimes drifted upon the Northern coasts 

 of Scotland and Ireland, Its reported occurrence in the Bahama 

 Islands is probably a mistake. 



L. trilaminata. — Found floating near Narragansett, Rhode 

 Island ; it is probably an abnormal form of L. saccharina. 



L. digitata. — On rocks at and below low water mark, common 

 as far as Cape Cod. Dr. Harvey's impression that possibly 

 more than one species is confounded under this name should 

 induce observers to examine the numerous forms with much 

 care. 



Agarum Tumeri. — The species of Agarum differ notably from 

 Laminaria in the flat frond being pierced throughout with holes, 



