194 



Transactions. — Zoology. 



enough, a gentleman happened to be in Christchurch who had been engaged 

 for years on " Canneries" on the west coast of America. He was shown 

 the fish in Dr. Campbell's surgery, and identified them as Californian 

 salmon. This, however, is scarcely proof of identity of species or genus. 

 But from a description and drawing (fig. 1, one-fourth nat. size) of part of the 

 81b. fish sent me through Dr. Campbell, I have had no difficulty in recog- 

 nizing it as of the genus Oncorhynchus, the distinguishing feature in which 

 is the possession of more than 14 rays in the anal fin (Giinther) ; but 

 there are not enough data in my possession to determine the species. The 

 Salmo quinnat is the species said to have come here, and it is of the genus 

 Oncorhynchus, quite a distinct fish from the Salmo salar. The fin rays in 

 this specimen (which has been preserved) are these : — 



D.13— P.16— V.9— A.15— C.19. 



Coregonus albus (American wliitefish). — In February, 1878, 20,000 ova 

 of this fish were received from San Francisco through the New Zealand 

 Government, whereof 12 hatched out, and 8 survived, which were placed in 

 a tributary of Lake Coleridge by Sir J. Cracroft Wilson. Very much 

 better results attended the next experiment in January, 1880, when 

 500,000 ova, less bad ones, were placed in the hatching boxes at Christ- 

 church, immediately on their being landed from San Francisco, January 

 17th. Hatching began on the 20th, and ended on the 29th, the temperatm-e, 

 by means of ice in the water, being kept at 54°. The number hatched out 

 was estimated at 50,000, but great numbers died from fungoid disease. 

 These were removed daily until February 24th, when about 25,000 re- 

 mained. The race water used averaged 56° Fahr. On February 24th, these 

 fish, by the society's admirable arrangements, and under the care of the 

 Messrs. Farr and Sir Cracroft Wilson, were successfully conveyed from 

 Christchurch by rail and buggy to Lake Coleridge in twelve hours, and 



