192 
NATURAL HISTORY^ 
THE ELECTRICAL EEL. 
38. This singular eel is common in South Amer- 
ica, where it is found in the rocky parts of rivers, 
far from the sea. It is three or four feet in length, 
and, in the thickest part, ten or twelve inches in 
circumference. In colour it resembles the common 
eel. 
39. The shock which it gives is so exceedingly 
strong, that persons have been knocked down, and 
almost killed by it. The animal can give a shock 
at pleasure, and thus stuns its prey, and renders it 
helpless. The electrical organs consist of two pair, 
and constitute more than one third of the fish. 
THE MACKEREL. 
40. The common Mackerel, while alive, is a most 
beautiful fish. Its body is of an elegant form, and 
Where is the Electrical Eel found ? Describe its appearance. 
How powerful is its shock ? 
Describe the Mackerel. 
