100 
THE SALT-WATER AQUARIUM. 
The Blunt Buscous-like Delessaria is a red-fronded species, growing 
upon rocks, and upon the larger marine plants. This is remarkable for the 
production of small leaves from the midrib of the fronds. 
LACERATED NITOPUYLUTM. 
The Lacerated Nitophyllum is another of the red group, its fronds 
being irregularly divided. It is very frequently met with on rocky coasts, 
growing from a minute discoid base, from which it is frequently broken away 
by the waves. The whole plant is in general very thin and delicate, of a 
pale pinkish red, varying to reddish brown. The lower part of the frond is 
always more or less distinctly marked with parallel, interbranching dark 
veins, originating at the base, and generally vanishing at the length of two 
or three inches, but sometimes extending even into the branches. The spe¬ 
cies is exceedingly variable in reference to the breadth and lacerations of the 
frond. This alga thrives well in a tank. 
The feathery bryopsis, leafy laminasia, and curly condrus, also flourish 
well; and with the broad-leaved ulva, the purple bagnia, and purse-like cod- 
rain, will form a beautiful mixture of colors, that may well rejoice the heart 
of the aspiring projector of the aquarium. 
There is much difficulty in exhibiting by small engravings the true por¬ 
traits of sea-weeds, because the forms of the most interesting specimens are 
minute, and more particularly the details are such as can only be observed 
by attentive examination, aided, in some cases, by the microscope, or by 
magnifying-glasses. To be transported from the sea-side to the collector’s 
inland home, these specimens must be very carefully packed in damp sea¬ 
weed. The broad oar-weed is the best for the purpose, being at once stout 
and smooth, and holding a great amount cf moisture. The weeds should be 
