CONTENTS. V 



Page 

 Proceedings of the Zoological Society; Entomological Society... 193—212 



Description of a new species of African Monkey ; Mexican Fossils ; 

 County of Down Fossil Infusoria ; Capture of Acipenser Huso ; 

 On the CijstidecB, by Von Buch ; On the Origin of Infusoria and 

 Mucor; Meteorological Observations and Table 212 — 216 



NUMBER CV. 



XXII. On the Howling Monkeys (Mycetes, Illiger). By J. E. Gray, 

 Esq., F.ll.S. &c 217 



XXI II. Notes, &c. on the genera of Insects Oxy stoma and Magdalis. 



By John Walton, Esq., F.L.S 221 



XXIV. Descriptions of some apparently new species of Birds from 

 Malacca. By T. C. Eyton, Esq., F.L.S 227 



XXV. On the Glyceriafluitans and G.pUcata. By Thomas Moore, 

 Esq 230 



XXVI. Descriptions of new or imperfectly described Diurnal Lepi- 

 doptera. By Edward Doubled ay, Esq., Assistant in the Zoological 

 Department of the British Museum, F.L.S. &c 232 



XXVII. On the Surface of the Stem and Contents of the Medullary 

 Cells of Nuphar lutea (Smith). By Julius Munter 236 



XXVIII. Note on some Marine Animals, brought up by Deep-sea 

 Dredging, during the Antarctic Voyage of Captain Sir James C. Ross, 

 R.N. By Joseph Dalton Hooker, M.D 238 



XXIX. Report on a memoir by M. P. Duchartre, entitled ' Obser- 

 vations on the Organogeny of the Flower of the Malvacea.' By MM. 

 Brongniart, Richard and De Jussieu 240 



XXX. Botanical Notices from Spain. By Moritz Willkomm ... 248 



New Books : — A Monograph of the British Nudibranchiate Mollusca, 

 with Figures of all the Species, by Joshua Alder and Albany 

 Hancock 252 



Proceedings of the Zoological Society; Entomological Society... 253 — 279 



On the genus Saccopteryx of Illiger ; On the Officinal Species of Pepper, 

 by M. Miquel ; Obituary : — Professor Graham of Edinburgh ; 

 Dr. J. W. Meigen ; Showers of Dust at Orkney ; Rain during the 

 present year; Meteorological Observations and Table 279—288 



NUMBER CVI. 



XXXI. Anatomical and Physiological Observations on Sagitta hi- 

 punctata. By M. A. Krohn. (With a Plate.) 289 



XXXII. Descriptions of new or imperfectly described Diurnal 

 Lepidoptera. By Edward Doubleday, Esq., Assistant in the Zoolo- 

 gical Department of the British Museum, F.L.S. &c 304 



