Tanks Nr. 2. 3. 



Tank Nr 2 



Fishes : Sea-crow (Cortina , fig. 57) , dark-coloured , dark lower 

 fins. Box (figs. 12 and 13) , silver with golden lines. Oblata 

 (fig 14), silver, with a black root to its tail. These all feed 

 on the green alga (the lettuce sea-weed, Ulva-lactuca) at the 

 bottom oi the tank. 



Fig. 12. Box hoops j 

 i/a nat. size. p. 97. 



Fig. 13. Box salpa. 

 /i nat. size. p. 97. 



Fig. 14. 



Oh! at a melanura. 

 1 ., nat. size. p. 97. 



Tank Nr 3. 



Containing Mollusks. 



1. Cephalopods (p. 76). * Squid or Calmar (Loligo, fig. 15), deli- 

 cate, transparent, and fish-like , with large eyes, swimming 

 up and down the tank. 



