MARINE TANK. 100 



enumerated hero, for the purpose of aiding collectors when 

 searching for stock for Aquaria. 



Of the Mdanospemuc or olive-colored algse, the follow- 

 ing might be introduced into au Aquarium : Desmarestia, 

 virulis and acukala, both of which are common at Hurl- 

 gate ; Edocarpus littoralis, siliculosus, viridis, lulosus and 

 JDietzia, tho first of which is common all along tho New 

 York coast. 



To the Rhodospermce, which I have mentioned above, 

 may be added the following : 



Clwndria Baileycana. 

 Rhodomda subfusca 

 Polysiphonia formosa. 



" subtilissima . 



" Olneyi. 



" Ilarveyi. 



" variegata. 



" nigrescens. 



" fastigiata. 



T>asya clcgans. 

 Rh odomen ia pa Imata . 

 Chondrus crispus. 

 Ceramium arachnoideum. 

 Calithamnion Ba ileyii. 



" polyspermism 



" byssoideum. 



Dietzue. 

 " Americanum. 



" crucialum. 



" virguhdum. 



