MARINE AQUARIA 



forms by the diversity of its colors; which shade in different parts of the 

 same plant from rosy-red and bright-green to violet, brown, dark-green, 

 olive and yellow. It grows to about 3 to 5 inches in height. All of the 

 genus are beautiful plants, common to the Middle Atlantic coast. 



Grinnellia americana (Harv.) or Flame Weed, is a very beautiful alga, 

 having a delicate red membranous frond 12 to 24 inches long and about 

 3 inches across the centre; with crisped and sinuous margins, and tapering 

 to a fine point at both ends. It usually grows in 5 to 8 fathoms of water 

 and is so beautiful that it is to be regretted that it will not usually survive 

 in the aquarium. 



There are many other common genera of Red Algae, but space will 

 not permit of a further mention. 



Alg^ for Marine Aquaria. The following are the best Alga; 

 for the marine aquarium: — Green Algae. Ulva lactuca and U. latissima; 

 Cladophora rupestris, Bryopsis plumosa and Vaucheria marina. Red Algae. 

 Corallina officinalis, Delesseria sinuosa, Polysiphonia violacea, P. urceolata and 

 P. fastigiata; Phyllophora membranifolia, Callithamnion americanum and C. 

 versicolor. 



The Olive-colored Algas should not be introduced or only small 

 plants under careful supervision. Some of the above may survive for a 

 longer or shorter period, but very rarely become fully acclimated. For 

 the aquarium to which considerable light has access, the Green Algse will 

 best serve, as they are the most likely to adopt themselves to these con- 

 ditions ; while those which are in subdued light or protected by green 

 tissue paper on the front next to the light will serve for some of the Red 

 Algae and still allow sufficient light to pass for the Green. The arrange- 

 ment should be by planting the green nearest the window or source of 

 light, and the red farthest away or screened by rockwork. 



For the aquarium in which marine fauna are kept a few tufts of Ulva 

 and Enteromorpha, and one or more each of Polysiphonia and Phyllo- 

 phora will be all that it is advisable to introduce. 



It is best to speedily transfer the plants from their native sites to the 

 aquarium, and to clean them with saltwater before placing them into it. 

 Any clean vessel will serve for their conveyance, and they should be 

 transmitted unhurt by friction or exposure to the atmosphere. Packed 

 between thick layers of moist seaweed they may be carried considerable 

 distances, this being better than in seawater which may rise considerably 

 in temperature and so injure the plants. Trials should be made, and 

 experience will be the best guide for their care and treatment. 



Marine Animals. Even a list of the marine fauna of the Middle 

 Atlantic coast would be so long, diverse and complicated that it could not 



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