38 THE ZOOLOGIST. 



should like to know is — Does this mean that in nature this species 

 plunges into deep water and flaps along the surface instead of bath- 

 ing in the shallows, as land-birds usually do ? The habit seemed to 

 me a very risky one, but maybe the birds know safe bathing-places. 

 — F. Finn. 



Display of Wilson's Bird of Paradise. — On a Sunday in late 

 autumn last, although the weather was dull, some Birds of Paradise 

 were displaying well at the Zoo, and in particular I noticed the 

 " show " of Schlegelia ivilsoni, which was new to me. After hopping 

 about actively in a horizontal pose, he drew himself up and bent down 

 his neck, fully displaying his bald blue head and yellow tippet. Then 

 he turned round and held his head up straight, equally well display- 

 ing these beauties and also the crimson back ; again turning, still 

 with the head up, he displayed his dark-green breast, thus fully 

 exhibiting the variety of rich colours, in which this species excels all 

 the others. The hen took no apparent notice. — F. Finn. 



MOLLUSCA. 



Catalogue of Sussex Mollusca. — My attention has been recently 

 directed to three papers, of which I was unaware when compiling 

 the catalogue of Sussex Land and Freshwater Mollusca (' Zool.,' 1915). 



(1) By Messrs. Santer Kennard and A. W. Stelfox, " On the 

 Occurrence in England of Valvata macrostoma (Steenbuch)," read at 

 a meeting of the Malacological Society on March 11th, 1910 (see 

 ' Proceedings,' vol. ix, Part II, June, 1910, p. 123). It records that 

 Mr. Stelfox found this species in the Pevensey Marshes in 1909. 



(2) By A. W. Stelfox on " The Occurrence of Helicella heripensis 

 (Mabille) in Great Britain," read at a meeting of the Malacological 

 Society on January 12th, 1912 (see ' Proceedings,' vol. x, Part I, 

 March, 1912). It records the finding of this species by the author at 

 the Devil's Dyke, and near Duncton in 1908, and at Lewes in 1911. 



(3) By A. W. Stelfox, " Notes on some British Non-marine 

 Mollusca," read at the Malacological Society on the same day as the 

 preceding. It records that the late Mr. P. Eufford first collected 

 Planorbis vorticulus, in a recent state, in Pevensey Level in 1908 ; 

 that Mr. Stelfox found Valvata macrostovia in the marshes near 

 Stoneham Farm, east of Lewes in 1911, and also Paludestrina 

 confusa in a tributary of the Arun, at Bury (a hamlet near Amberley 

 Station) in 1908, and again in 1911. 



The last paper contains a most excellent photograph, by Mr. E. 

 Welch, of all the species above mentioned, with others. 



