Tank No. loa. 



25 



In the small open 



Tank No. 10 a. 



in front of Tank lo, lying on or half buried in the shingle, is 

 an Electric Ray ( Torpedo, fig. 64) from which shocks may be 

 taken. The fingers should be placed under the broad part of the 

 body, the thumb above, and the animal squeezed and lifted up. 

 Frequently among the shingle are small white pointed objects, 

 about two inches long, looking not unhke split sardines. These 

 are Lancelets {Aniphioxus, fig. 65), the lowest of Vertebrates. 



Fig. 64. Torpedo ocdlata (Electric Ray), Vs nat. size. p. 105. 



Fig. 65. Aniphioxus lanccolatus (Lancelet), twice nat. size. p. loi. 



