IV CONTENTS. 



Page 

 XI. Observations on some of the HeKotropie<x. By John Miers. 

 F.R.S., F.L.S., &c 121 



Xn. On Phidiana lynceus and Ismaila monstrosa. By Dr. Rud. 

 Bergh. (Plate I.) 133 



XIII. On Spirifer cuspidatus. By Dr. William B. Cabpenter . 138 



XIV. On some new Species of Diurnal Lepidoptera from South 

 America. By Osbert Salvin, M.A., F.L.S., &c., and F. Du Cane 

 GODMAN, F.L.S. &c 141 



Neio Books : — ^Principles of Geology, or the Modem Changes of the 

 Earth and its Inhabitants considered as illustrative of Geology, 

 by Sir Charles Lyell, Bart., M.A., F.R.S.— Siluria. A History 

 of the Oldest Rocks in the British Isles and other Countries ; 

 with Sketches of the Origin and Distribution of Native Gold, 

 the General Succession of Geological Formations, and Changes 

 of the Earth's Surface, by Sir R. I. Murchison, Bart, K.C.B., 

 &c. &c. &c. — Acadian Geology : the Geological Structure, Or- 

 ganic Remains, and Mineral Resources of Nova Scotia, New 

 Brunswick, and Prince Edward Island, by J. W. Dawson, M.A., 

 LL.D., &c. &c. &c 152-159 



Proceedings of the Royal Society 159 



Note on the Existence of a large Pelican in the Turbaries of England, 

 by A. Milne-Edwards ; On Oliva auricularia, Lam., O. aquatilis, 

 Reeve, and O. aurictdaria, D'Orb., by F. P. Marrat ; On a Vivi- 

 parous Sea-Urchin, by Dr. E. Grube ; Note on the Anatomy of 

 Pontohdella verrucata (Leach), by L. Vaillant; Considerations 

 upon the fixation of the Limits between the Species and the 

 Variety, founded upon the study of the European and Medi- 

 terranean Species of the Hymenopterous Genus Polistes (Latr.), 

 by M. Sichel ; On a new Species of Chirogalus from the West 

 Coast of Madagascar, by M. A. Grandidier 165 — 172 



NUMBER IX. 



XV. On the British Species of Alpheus^ Typtoti, and Axius, and on 

 Alpheus Edivardsii of Audouin. By the Rev. A. M. Norman, M.A. 173 



XVI. Contributions to the Study of the Entomostraca. By 

 George Stewardson Brady, C.M.Z.S. &c. No. II. Marine 

 Ostracoda from the Mauritius. (Plates XII. & XIII.) 178 



XVII. On the existence of Capillary Arterial Vessels in Insects. 



By Jules Kunckel 184 



XVIII. On Aranea lohata, Pallas {A. sericea, Oliv.). By T. 

 Thorell 186 



XIX. Observations on some of the Heliotropiecs. By John Miers, 

 F.R.S., F.L.S., &c ' 191 



XX. On a point relating to the Histology of Rhynchonella. By 

 Professor W. King • • "_ 204 



