26 



Part first- 



Nr. 12. 



Fishes. Gobies (Golniis, fig. 68) , small and spiny ; they serve as 

 food -for Skates (Raja , fig. 69) aud Electric Rays (Torpedo, 

 tig. 65). Both of these are flat and nearly hidden in the 

 sand ; the skate grey with pointed snout , the electric ray 

 brown , in one species (ocellata) with five large spots , its 

 head is semi-circular. Also young Dog-fisch (Scyllium. fig. 61). 



Fig. 68. Gobiu& paganellus (Goby). 

 Va "at. size. p. 93. 



Fig. 69. Raja punctata (Skate), 

 V3 nat. size. p. 90. 



Tank Nr. 13. 



Fishes. Red Mullet (Mullus , fig. 70) , with two white feelers in 

 front of its chin. Smarts (fig. 71) , a pretty little silver fish 

 with a black finger-mark on each side. 



