July 20. 



Price 85 



THE JOURNAL 



OF 



THE LINNEAN SOCIETY. 



Vol. XXXII. 



ZOOLOGY. 



No. 211. 



CONTENTS. 



Page 

 I. The Spermatogenesis of Stenohothrus viridulus ; with Special 

 Reference to the Heterotropic Chromosome as a Sex Determinant 

 in Grasshoppers. By Capt. C. F. U. Meek, F.L.S. (Plates 1-3, 

 find text-figure.) 1 



11. A Comparison of the Smnmer Plankton on the West Coast of 

 Scotland with that in the Irish Sea. By Prof. W. A. Hekdman, 

 D.Sc, F.R.S., F.L.S. (8 text-figures.) 23 



III. On some Hexactinife from New South Wales. By Leonoka J. 

 WiLSMORE, M.Sc, Zoological Laboratory, University College, 

 London. (Plates 4-6, with a text-figure.) (Communicated by 

 Prof. J. P. Hill, D.Sc, F.L.S.) 39 



LONDON : 



SOLD AT THE SOCIETY'S APARTMENTS, BUKLINGTON HOUSE, 

 PICCADILLY, ^N., 

 AND BY • 



LONGMANS, GREEN, AND CO., 



AND 



WILLIAMS AND NORGATE. 

 1911 



.<^^ 



^^sonian insti/,^ 



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