98 NAIS. Class VI. 



. DiGl- Cm. Lin. 312\. 452. 



TATA. Shaw's Nai. Misc. tah. Turton Br. Faun. 137. 



[N. with single lateral bristles, but chiefly 

 distinguished by six retractile processes at the 

 end of the tail ; length four lines. 



In stagnant waters towards the decline of 

 summer; rare. Ed. 



