83 BRITISH SEA-WEEDS. 



Ectocarpus crinitus: Hairy Ectocafpus. 



Tufts growing on muddy sea-shores, from two to six 

 inches long, spreading over the mud when the tide is down. 

 Threads hair-like, very slender, and but little branched. 

 Pods globular, without stalks. 



The recorded localities for this rare species are Appin, 

 Scotland, and Waterraouth, near Ilfracombe. 



Ectocarpus pusillus. The small Ectocarpus. 



Tufts parasitical on small sea-weeds, having the appear- 

 ance of " pale-brown wool." Threads slender, sparingly and 

 irregularly branched, interwoven together. Pods roundish, 

 on very short stalks, abundant. 



This species, too, is rare. Hitherto it has only been 

 found on the coasts of Devon and Cornwall. It pro- 

 bably exists in other localities, but has been overlooked 

 in consequence of its small size. 



Ectocarpus distortus. Distorted Ectocarpus. 



Tufts parasitical on the leaves of Zostera marina, about 

 six inches long, composed of numerous threads closely in- 

 terwoven. Threads much and irregularly branched in a 

 spreading, zig-zag manner. Pods egg-sliaped, without stalks. 



This is another rarity, not likely, I fear, to be found 

 by many of my readers. 



Ectocarpus Landsburgii. Iiandsborough's Ecto- 

 carpus. 



Tufts small, intricate, growing in deep water. Threads 

 tough, much branched in a zig-zag manner, and covered 

 with short, spine-like branchlets. 



