president's address. 21 1 



specially interesting, being a completely southern species, 

 and hitherto, so far as I know, found only at a few sta- 

 tions on the south of England and Ireland. 



S. plumosa. Marsden and near Sunderland ; rare. 



You will perhaps think this an unwieldy list, but I might 

 have lengthened it still more. I have, however, selected only 

 those that I thought of some importance. The Algce have been 

 so imperfectly studied that there is little difficulty in laying hold 

 of unrecorded species." Mr. Brady, who is working almost alone 

 in this branch of science, so far as concerns local assistance, is 

 particularly desirous of information respecting our AlgcVj or 

 opportunities for examining authentic local collections. We are 

 all aware how necessary the general co-operation of other observers 

 is for the completion of such a work as Mr. Brady has kindly 

 undertaken. 



Mr. Alder has added a few Zoophytes to our local list during 

 the year, among which are two new species of Campanularice, and 

 a new Atractylis. Descriptions of them will shortly be published. 

 A small Zoanthus, found by him at Cullercoats a year or two ago, 

 has lately been described by Mr. Gosse in his "Actinologia Bri- 

 tannica," under the name of Zoanthus Alderi. It is to be hoped 

 that this new species may be again met with, in order that its 

 characters may be more fully studied in a living state. 



Mr. H. B. Brady, F.L.S., has continued his investigations on 

 the Foraminifera^ and only awaits the results of some deep-water 

 dredging, which he has not yet had the opportunity of undertak- 

 ing, to prepare a catalogue of our local forms. 



To Mr. Albany Hancock's indefatigable researches we are in- 

 debted for the discovery, that the microscopical parasites infesting 

 shells of mollusca, and recently described by Kolliker as unicel- 

 lular /ww^//, and by Wede as Algce {Confervoe) are found on our 

 coast. Four or five species have occurred to Mr. Hancock, and 

 it cannot be doubted that many more exist. Mr. H. has been 

 aware of these organisms for several years, but had deferred their 

 examination in the hope of procuring some in a living state. 

 However, since the publication of Kolliker's paper, an abstract of 

 which appeared in the " Proceedings of the Royal Society," he 



