S2 DR. G. S. BRADY ON FRESHWATER [Feb. 2, 



accompany any other gulls ; Mr. Williams indeed did not take it for 

 a gull at all. 



The date of its capture was not noted ; it came into Mr. Thompson's 

 hands November 1st, 1884, and had been then some days dead. It 

 was therefore probably shot at the beginning of the last week in 

 October. The sex was not ascertained. 



Mr. Henry Seebohm exhibited a fully adult male of Ross's Gull 

 (Larus rossi) which had been shot on the 15th of June, 188.5, in the 

 neighbourhood of Christianshaab on the south shore of Disco Bay in 

 Greenland, about latitude 69°. It was shot at the nest, and both bird 

 and egg were sent by Mr. Paul Miiller to Copenhagen. The egg is 

 of exactly the same character as that of Sabine's G\A\ {Larus sabinii), 

 but is rather larger, measuring T 9 by TS inch. Mr. Seebohm 

 exhibited a coloured photograph of the egg, which has never been 

 obtained before. The bird is so rare that the British Museum 

 does not possess an example, though there is one in Edinburgh and 

 one in Liverpool, from Melville Peninsula, and one in Cambridge, 

 besides three in Copenhagen, the last four from Disco Bay. In the 

 fully adult breeding bird the delicate salmon-coloiir of the head, rump, 

 and under-parts, contrasting with the black ring round the neck, make 

 it an exceptionally beautiful object. The bill is black, the legs and 

 feet coral-red with black nails, and the orbits deep orange or pale 

 Termilion. 



A communication was read from Prof. R. Collett, C.M.Z.S., con- 

 taining an account of the external characters of the Northern Fin- 

 whale (Balcenoptera borealis). This memoir had been based upon 

 the examination of numerous specimens of this Whale killed on the 

 coast of Norway during the past summer. 



This paper will be published, with illustrations, in the Society's 

 ' Transactions.' 



The following papers were read : — 



1. Notes on Freshwater Entomostraca from South Aus- 

 tralia. By George Stewardson Brady, M.D., F.R.S., 

 F.L.S., Professor of Natural History in the Durham 

 College of Science, Newcastle-upon-Tyne. 



[Received January 5, 1886.] 



(Plates VIII.-X.) 



The Entomostraca here described were collected by Professor 

 Ralph Tate, of the University of Adelaide, South Australia, and by 

 Mr. T. Steel. Prof. Tate's specimens were sent by him to Prof. T. 

 Rupert Jones, F.R.S., to whose kindness I am indebted for the 



