Notes on the Marine Algce of Beriuick-on-Tiueed. 535 



I took a beautiful male specimen of Pterostoma Palpina here 

 on the 28th inst., and as I have observed no notice of its 

 occurrence so far north, I think it worthy of mention, besides 

 adding a good species to the local list. The moth belongs to 

 the family of the Notodontidse, and is the only representative of 

 the genus Pterostoma. 



June 1885. 



Notes on the Marine Algce of BeriuicJc-on-Tweed. By 

 Edward A. L. Batters, B..A., LL.B., F.L.S. 



Since the publication of the last volume of our Proceedings, I 

 have had the good fortune to make several important additions 

 to my former lists of the previously unrecorded Algae of Berwick 

 and its neighbourhood. 



The specimens from which the following supplemental list has 

 been compiled, were collected in the summer and autumn of 1884, 

 during a series of botanical excursions, in some of which I was 

 accompanied and assisted by my friend Mr E. M. Holmes. 



All the species recorded below are I believe, new to Berwick, 

 and three of them, namely — Elachista Areschougiiy Cladophora 

 arctiuscula and Codiolum longipes, are additions to the flora of 

 Britain. 



1 . NoduUria Harvey ana. Thuret, Class des Nostoch. (Spermo- 

 seira Harveyana, Thwaites, Phyc. Brit. pi. 173. c.) 



On the mud at the mouth of the river Tweed, usually mixed 

 with species of Oscillatoria. Very rare. 



2. Lynghya viajmcula {Dillw.) Harv., Phyc. Brit. pi. 162. 

 Kut%. Spec. Alg. p. 283. Crouan, Alg. Finist., No. 337. Lloyd, 

 Alg. de rOuest, No. 135. Le Mis, Alg. Mar. Cherb., No. 94. 

 Liste, p. 29. 



On the sands crossing to Holy Island. Very rare. 



3. Symploca Harvetji. Le Jol., Alg. Mar. Cherb. No. 139. Liste 

 p. 29. (Calothrix semiplena, Harv. Phyc. Brit. pi. 309). 



Caves near the Needle's Eye and Farthing Bay, E. M. Holmes. 

 Greenses, Dodd's Well and Scremerston, E. A. B. Eare. 



4. Calothrix Crustacea {Schoush) Born et TJiur. Notes Alg. I. 

 p. 13. pi. IV. (Schizosiphon fasciculatus and lasiopus, Kutz. 

 Oscillatoria Crustacea, Schousl.) 



