40 



flight, and the pictures of the Roseate Terns were of special 

 interest, being the only series ever taken of this species within 

 the British Isles. 



A paper was received from Mr. G. C. Shortridge, communi- 

 cated by Mr. Oldpield Thomas, F.R.S., F.Z.S,, entitled "An 

 Account of the Geographical Distribution of the Marsupials and 

 Monotremes of South-west Australia, having special reference to 

 the specimens collected dviring the Balston Expedition of 1904- 

 1907." 



Dr. W. T. Calman, F.Z.S. , communicated a paper by Mrs. E. 

 W. Sexton, entitled " Notes on some Arnphipoda from the ISTorth 

 Side of the Bay of Biscay." 



The paper contained notes on the development of the females 

 of certain Amphipoda, showing that structural modification con- 

 tinues even after sexual maturity is reached, and this may give 

 rise to differences of so striking a character that earlier and later 

 stages might easily be mistaken for distinct species. This 

 ■was illustrated by examples from the families Pleustid^e and 

 EusiRiD^. 



The Secretary communicated a paper by Lt.-Col. J. M. 

 Fawcett on " Aberrations in Nymphalin^ from the Andaman 

 Islands, and of Papilio clytia from Burma." 



Mr. R. Lydekker presented a "Note on the Cetacean Sotalia 

 borneensis," which contained a correction of his description of 

 this species published in the Society's 'Proceedings' for 1901 

 (p. 88, pi. viii.). 



