CONTENTS. Vll 



Page 

 Missouri : being the substance of a Report made to Lieut. G. K. 

 Warren, T.E.U.S.A., by Dr. F. V. Hayden, &c. &c 371 



Proceedings of the Zoological Society 380 — 389 



' The Land and Freshwater Mollusks of the British Isles;' On the 

 true Nature of Pleurodyctium problematicum, by Carl Rominger, 

 M.D.j Piedmontese Plants ; Obituary Notice — William Groves 

 Perry 389—392 



NUMBER LXVI. 



XLII. On the Capitellce and their Position in the System of the 

 Annelida. By Edward Grube 393 



XLIII. Remarks on the Vessels of the Latex, the Vasa propria, 

 and the Receptacles of the elaborated Juices of Plants. By M. 

 Lestiboudois 402 



XLIV. On Acantholeberis (Lilljeborg), a Genus of Entomostraca 

 new to Great Britain. By the Rev. Alfred Merle Norman, M.A. 

 (Plate XL) 409 



XLV. On the Form of the Cells made by various Wasps and by 

 the Honey Bee ; with an Appendix on the Origin of Species. By 

 the Rev. Samuel Haughton, Fellow of Trinity College, Dublin ... 415 



XLVI. On the former Connexion of North Africa with South 

 Europe. By Prof. Edward Suess 429 



XLVII. Further Observations on Amozba villosa and other indi- 

 genous Rhizopods. By G. C. Wallich, M.D., F.L.S., F.G.S. &c. 

 (Plate X.) 434 



New Books : — A History of British Sessile-eyed Crustacea, by C. 

 Spence Bate, F.R.S., F.L.S. &c, and J. O. Westwood, M.A., 

 F.L.S. (Parts I.-XI.).— The Tropical World : a Popular Scientific 

 Account of the Natural History of the Animal and Vegetable 

 Kingdoms in the Equatorial Regions, by Dr. G. Hartwig. — 

 Phosphorescence, or the Emission of Light by Minerals, Plants, 

 and Animals, by T. L. Phipson, Ph.D., F.C.S 454—457 



Notice of three Wombats in the Zoological Gardens ; on two Forms of 

 Anthriscus sylvestris ; on the Change in Form of the Teeth of 

 the Susu (Platanista), by Dr. J. E. Gray, F.R.S. &c. ; On the Oc- 

 currence of living Water-Beetles in the Intestines of the Common 

 Trout, by the Rev. W. Houghton ; Pretended " Parthenogenesis " 



