CETOCHILTJS. 305 



shoals of codfish are seen swimming lazily about, and de- 

 vouring their minute prey in great quantities. Occasion- 

 ally small shoals of herrings are seen pursuing them with 

 greater agility. . . . Great numbers of Cetacea often fre- 

 quent the neighbourhood of the island at this time, droves 

 of dolphins and porpoises swimming about with great acti- 

 vity, and occasionally an immense rorqual may be seen, 

 raising his enormous back at intervals from the water, and 

 is to be observed coursing round and round the island."" 

 Among the Entomostraca the red Cetochilus was very marked, 

 the sea being sometimes slightly red with them. 



The observing Arctic voyager and whaler cannot fail to 

 be struck with the elegant motions of these creatures. Tor 

 instance, my friend Dr. Sutherland, who was surgeon of 

 the ' Sophia' on her Arctic search for Sir John Eranklin 

 and his comrades, thus refers to them in his Journal of May 

 23, 1850: — "Entomostraca of very large size {Cetochilus) 

 darted in the water with the swiftness of arrows. Nothing 

 could exceed the gracefulness of their motions, when, with 

 every jerk, the two long oar-like antennse were thrown ellip- 

 tically in the form of curves along the body, but not touch- 

 ing any part of it, until they met at the last segment. It 

 was only during the rapid movements of the Cetochilus that 



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