SCABIDIUM. 



153 



pointed tail, but very broad at the head, which 

 has two shoulder-like appendages, giving it a 

 peculiar look, and rendering it, with other circum- 

 stances, easily distinguished. It has a large red 

 eye. Altogether, this is an interesting specimen, 

 but from its liveliness rather tantalizing, for it 

 may be followed for a considerable time before it 

 remains sufficiently tranquil for any of its pecu- 

 liarities to be noted. Another species, found 

 in the Baltic, produces a phosphorescent light, 

 observed by Dr. Michaelis. 



Scandium longicaudum has a long foot, twice 

 the length of the body, and seemingly jointed 

 in the middle. It is divided at the extremity 

 into two toes : with the aid of this curious ap- 

 pendage, the animalcule has the power of leaping 



