VI CONTENTS. 



Page 

 NUMBER CXII. 



XXXVI. Note on the Excavating Sponges ; with Descriptions of 

 four new Species. By Albany Hancock, F.L.S. (Plates VII. & 

 VIII.) 229 



XXXVII. On the Young Stages of a few Annelids. By Alex- 

 ander Agassiz 242 



XXXVIII. Description of a new Species of Mesoprion. By Dr. 

 Albert GuNTHER. (Plate IX.) 257 



XXXIX. Remarks on the Falces and Maxillae of Spiders. By 

 John Blackwall, F.L.S. (Plate X. figs. 1, 2, 3.) 258 



XL. Description of a new Land- Shell from Trinidad. By R. J. 

 Lechmere GuppY, F.G.S. (Plate X. fig. 4.) 260 



XLI. Notes on Professor Owen's Description of Euphysetes simus. 

 By Dr. J. E. Gray, F.R.S. &c 261 



XLII. On the Temperature of Geological Periods, from indications 

 derived from the observation of Fossil Plants. By the Count Gaston 

 de Saporta 263 



XLIII. Observations on Argyroneta aquatica. By Dr. Felix 

 Plateau 283 



New Book : — Contributions towards a Cybele Hibernica, being Out- 

 lines of the Geographical Distribution of Plants in Ireland, by 

 D. Moore, Ph.D., and A. G. More, F.L.S 286 



Proceedings of the Royal Society 289 



On some Points in the Anatomy of the Genus Fistulina, by J. de 

 Seynes : On the Occurrence of Ziphius Sowerbiensis on the coast 

 of Kerry 302-304 



NUMBER CXIIL 



XLIV. On the Genus Plectostoma, H. Adams, and on the Animal 

 of Diplommatina, Benson. By William T. Blanford, A.R.S.M., 

 F.G.S 305 



XLV. Characters of some new Genera of the Coleopterous Family 

 Ceramhycidce. By Francis P. Pascoe, F.L.S., F.Z.S., &c 307 



XLVI. On the Menispermaceoi. By John Miers, F.R.S., F.L.S., 

 &c 319 



XLVII. Notulse Lichenologicse. No. XIV. By the Rev. W. A. 

 Leighton, B.A., F.L.S. — Dr. W. Nylander on new British Lichens 330 



XLVIII. List of Coleoptera received from Old Calabar, on the West 

 Coast of Africa. By Andrew Murray, F.L.S 334 



