Genus Licrophycus. (N. gen.) 



Generic Characters. — Composed of numerous elongated sub-cylindrical 

 stems springing from a common root, the stems either remaining single or 

 sending off branches at an acute angle. 



The genus ButhotrepMs (Hall) should, I think, be confined to those 

 fucoids which consist of a central principal stem, more or less branched 

 above, as in B. antiquata, B. subnodosa, &c. The species which form 

 tufts consisting of a number of stems rising from a single root, appear to 

 be sufficiently different to constitute a distinct genus. 



Licrophycus Ottawaensis. (N. sp.) 



Pig. 87. 

 Pig. 87. — Licrophycits Oitawaensis. 



Description. — This species consists of elongated slender flexible stems, 

 springing from a common root, and dividing into numerous branches, which 

 are given off at a very acute angle. The stems are from 1^ to 2 lines in 



