Zoological Clvih. §79 



On the Crepitacula and Organs of Sound in Orihopterous Instcls ; 

 and particularly in the Locusta camellifolia, u description of which 

 is subjoined; by the Rev. Lansdown Guilding, B.A. F.L.S. 



June 21. — The following papers were read : Catalogue of tht 

 New Holland Birds in the Collection of the Linneun Society ; by 

 Thomas Horsfield,M.D.F.L.&G.S., and N. A. Vigors, Esq.M.A, 

 F.L.S. : communicated by the Zoological Club of the Linneaa 

 Society. In the introductory remarks io this paper the authors 

 express their confident expectation that the deficiency of our 

 knowledge of the habits of the Birds of Australia, will be iii 

 great measure supplied by the researches of Mr. A. MacLeay during 

 his future residence in that interesting country. — A notice on a 

 peculiar property of a species of Echinus ; by E. T. Bennett, 

 F. L. S. : communicated by the Zoological Club. 



The Society then adjourned over the long vacation, to meet 

 again on the First of November next. 



ZOOLOGICAL CLUB OF THE LINNEAN SOCIETY. 



Jpril 12. — The Secretary exhibited a specimen of the Gallinula 

 Baillonii^ Temm., which had been lately taken near Melbourne, 

 in Cambridgeshire, and had been communicated to him by the 

 Rev. Dr, Thackeray, F.L.S. Provost of King's College, Cambridge, 

 for the information of the Club. This is the first instance of this 

 species, which is not uncommon in the eastern and southern parts 

 of Europe, being recorded as a British Bird. 



Mr. Swainson exhibited five new species of the genus Thamno- 

 philuSf Vieill., which he was about to describe in the Zoologicdl 

 Journal,* as also several species which had lately been described 

 in this country : and he stated that he was now acquainted with 

 at least twenty-five species of that genus. He particularly dwelt 

 upon this circumstance, as it illustrated the progress of science 

 dunng the last few years, the genus Tham7iophilas having been 

 originally founded upon a single species, the Lanius doliaiuSy 

 Linn., in the year 1816. This single genus now comprises nearly 

 as many species as belonged to the whole of the genus Lanius in 

 the days of Linnasus ; twenty-six species only having been in- 



* See the pjcseiil Volume, p. S4. 



