MARINE AQUARIA 



Enteromorpha compressa (Grev.) or Band Weed, has two layers of 

 cellules in the compressed or flattened fronds, slender at the base but 

 gradually expanding above, with a blunt, straight-cut top. This alga 

 grows to 8 and lo inches in length and is of a dark-green color. It may 

 be found along the entire Atlantic coast and is one of the few which may 

 survive in the aquarium. 



Cladophora rupestris (Linn.) or Rock Branchweed, has dark, dull- 

 green, stiff and rigid fronds with secondary acutely divided branches and 

 closely clustered branchlets. The plant forms a tuft J to 6 inches high. 

 May be found near low-water marks in tide pools or attached to the sides 

 of rocks and wreckage. Most plentiful along the New England shore, 

 but extends south to Florida. 



Cladophora arcta (Dillw.) or Arched Branchweed, has very thickly 

 clustered branches and straight branchlets, giving the tuft a graceful arched 

 appearance. The color is a glossy yellowish-green. It is frequently met 

 with below tide-marks from Cape Cod south to Virginia and near Santa 

 Cruz in California. 



Bryopis pulmosa (Lam.) or Sea Feather, has beautiful bright-green 

 tufted 2 to 6 inches long branches, with spreading slender filamentous 

 pinnate fronds, which are shorter at the ends of the branches and placed 

 to give the plant a feathery appearance. May be found in tide-pools 

 growing on the rocks and on wreckage, and is very widely distributed on 

 the Atlantic and Pacific coasts. 



Chatomorpha melagonium (Web.) or Flowing Hair, has stiff wirey 4 to 

 12 inches long, articulated, bristly fronds tapering at the base, with blunt 

 tips, rising from a disclike holdfast. It is of clear dark-green color and 

 common on northern rocky shores; very rarely in sandy localities. 



Chatomorpha tortuosa (Dillw.) or Sea Wool, forms green mats com- 

 posed of very thin filaments on rocks and shells, a densely felted and 

 interwoven mass of wooley, confervalike growth. Common from Delaware 

 northward. 



Vaucheria marina (Dillw.) or Marine Vaucheria is a small brilliantly 

 green tufted plant growing quite generally on the mud banks and rocks 

 between tide-marks. Another form, V. submarina, occurs in deeper water. 



Olive-Colored Marine Alg^. Melanospermese are mostly of 

 strong growth and leathery consistency, and will not thrive in the aquarium. 

 They are a very numerous family of which but a few species of the more 

 widely distributed genera are here given. 



Alaria esculenta (Grev.) or Edible Bladderlock, belongs to the group 

 of Algffi popularly known as "Kelps," and has a quillike midrib which 

 constitutes the stem, winged at each side with ribless leaflets, often divided 



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