282 CATALOGUE OF THE MARINE ALG.E 



2. S. scoFARiA, L?/ngh. Harv. Man., p. 55. Pliyc. Brit., t. 37. 



Atlas, PI. XVII., fig. 73. Johnst. and Cr., t. 

 172. 

 Conferva scoparia. E. Bot., t. 1552. 

 '' On the sea-sliore. Not rare." — Winch. I have never found 

 this species, nor seen specimens of it in any of the local collec- 

 tions which I have examined. — N. D. 



3. S. PLUMOSA, Lyngh. Harv. Man., p. 56. Phyc. Brit., t. 87. 



Atlas, PL XYIL, fig. 74. Johnst. and Cr., t. 



173. 



Conferva pennata. E. Bot., 2330. Left-hand figure. 



On rocks in tidal pools, beneath the shade of projecting ledges 



or of the larger Alg£e. Rare. Pools beneath the " Velvet 



Beds," Marsden, and between Sunderland and Ryhope. Also 



washed up at Roker. — G. S. B. — D. 



Probably in other places, but likely to be overlooked, owing to 

 its liability to become infested with masses of parasitic Algas 

 and sponges, as well as from its disposition to inhabit spots 

 almost invisible without careful searching. This is said to be 

 strictly a northern species, but the specimens found upon the 

 Durham coast are all somewhat stunted in habit. I am not 

 aware that it has been observed in Northumberland. — D. 



4. S. ciRRHOSA, Ag. Harv. Man., p. 56. Phyc. Brit., t. 178. 



Atlas, PI. XVIIL, fig. 77. Johnst. and Cr., 

 vol. iii., p. 157. 

 Conferva pennata. E. Bot., t. 2330. Two right-hand 

 figures. 

 In the sea, on other Algse. Near Whitburn, Marsden, and 

 Sunderland.— (9. S. B.—^. D. 



/3. ^GAGROPILA. 



At Holy Island, on Halidrys siliquosa, &c. 



5. S. FUSCA, Ag. Harv. Man., p. 57. Phyc. Brit., t. 149. 



Atlas, PI. XVIII., fig. 78. Johnst. and Cr., vol. 

 iii., p. 159. 



