TIII: 



KM. 



17! 



Hie dorsal tin Infills a little behind tin- head and runs t> tli.- tail. \\ln-n- it is unit-d with the 

 anal tin. lloth the-*- tins are. ho\\e\er. low and ll-hs , and not at all conspicuous. The 

 length of tlii> fish i> extremeh \ariable; one captured specimen measured four fe*>t four 

 indies in length. 



Tin- Mnr.-i-na. ,// /<//<//*>, is found fnnii ( 'li:iiltton, 8. C., to Florida. 



li> ii-ual l.'ii-tli is alHnit t\M>ni\ inches. Its >lia]ie is somewhat like that of the Blenniea. 

 its |.rn]-iisit\ to liitf. and p>li*rul ui){M-aruilO8, are 8Ugg< snake. 



'I'm KLBCTRIC EKI i- <-\.n UK !-. P nmrkable for its capability of delivering powerful 



electric sliiN-ks tliall the 





MTILBNA - 



The Elertric VA-] is a native of Southern America, and inhabits the rivera of that warm 

 and Verdant country. The orpins which enable it to produce such wonderful effects are 

 double. aid lie alon.tr the Inxly. the on.- ujH>n the other. 



'I he reader \\ ill ivinemU'r that in the (<>r]M*do the electric effei-t was produced by a number 

 of little columns ; in the Klectric K-l. the corresponding organ consists of a great numter 

 of divi-ions, te-hnically called septa." which are again subdivided by leaser tnn 

 ineiiiliriin-x. One organ is always larger than the other; and it was found that in a fish 

 in- .I-M! in_- .:..,', two IM! '' tabM in i'-n-th. lii.-p- \\.-i.- tliiit\ -f..ur -epta in the laiL'-'r 

 organ and fourteen in the ^mailer. On an average two hundred and forty transverse 

 membranes are packed in each inch, theivl.y -king avast extent of electricity-producing 

 surface. It \\a.s calculated by Laoepede. that tlie expanse of this organ in an Klectric Eel of 

 four feet in length is equivalent to one hundn-<l and twenty-three square feet, while that of a 

 large torpedo only equals fifty-eight feet. 



You IB.-* 



