222 APPENDIX. No. IV. 



Upper parts light greenish olive, passing into deep reddish- 

 pink on the sides. Lower part of a silvery colour. Sides 

 with very small red spots. Dorsal and upper part of the 

 caudal of the colour of the back. Paired fins and anal 

 and lower part of caudal deep red, with yellowish-white 

 margins. 



Several specimens were obtained in a freshwater lake near 

 to the winter-quarters of the ' Discovery,' in a depth of from 

 ten to fifteen feet. 



This is a small species, the largest example measuring 

 ten inches, all the others, males and females, being only eight 

 inches long. Yet the sexual organs were fully developed, and 

 the ova ready for exclusion. 



By associating the name of Sir George Nares with one of 

 the novelties brought home by the Arctic Expedition, I pay 

 only a small tribute of the esteem in which all zoologists 

 hold the leader of the ' Challenger ' and Arctic Expeditions. 



