IV CONTENTS. 



Page 



VIII. On the Occurrence of an Intestinal Worm in an Acaleph. By 



M. Sars. (With a Plate.) 88 



IX. A List of the scarcer amongst the Lichens wliich are found in 

 the neighbourhood of Oswestry and, Ludlow, with occasional observa- 

 tions upon some of them. By the Rev. T. Salwey 90 



X. Reply to some Observations of Prof. A. Wagner on the genus 

 Mylodon. By Prof. Owen, F.R.S. &c 100 



XI. List of Birds found in the vicinity of Tunis and Biserta, from 

 observations made during a month's visit from April 21st to May 21st 

 1845. By H. M. Drummond, 42nd R.H 102 



XII. On the British Diatomacea;. By John Ralfs, Esq., M.R.C.S., 

 Penzance. (With a Plate.) 109 



XIII. Botanical Notices from Spain. By Moritz Willkomm 113 



Proceedings of the British Association for the Advancement of Sci- 

 ence — Meeting held at Cambridge ; Royal Society ; Geological 

 Society ; Asiatic Society j Botanical Society of Edinburgh... 123 — 140 



Ranunculus Lenormandi, F. W. Schultz; Carex montana, Linn. ; Mi- 

 grations of Salmon ; On the Spores of some Algae, by M. Gustave 

 Thuret ; On the Extinct Mammals of Australia, with Additional 

 Observations on the genus Dinornis of New Zealand, by Prof. 

 Owen; Meteorological Observations and Table 141 — 144 



NUMBER CIV. 



XIV. On the Anatomy of Actcsony with remarks on the Order 

 Phlehenterata of M. de Quatrefages. By Geo. J. Allman, M.B., 

 F.R.C.S., M.R.I. A., Professor of Botany in Trinity College, Dublin, 

 late Demonstrator of Anatomy T. CD. (With three Plates.) 146 



XV. Description of a new genus of Night Lizards from Belize. By 



J. E. Gray, Esq., F.R.S. &c 162 



XVI. The Arctic Expedition under the command (^ Sir John 

 Franklin 163 



XVII. Observations on some Plants obtained from the shores of 

 Davis' Straits. By William Seller, M.D., Fellow of the Royal Col- 

 lege of Physicians, Edinburgh 166 



XVIII. Horee Zoologicae. By Sir W. Jardine, Bart., F.R.S.E. & 

 F.L.S. (With two Plates.) 174 



XIX. Descriptions of new or imperfectly described Diurnal Lepi- 

 doptera. By Edward Doubleday, Esq., Assistant in the Zoological 

 Department of the British Museum, F.L.S. &c 176 



XX. On the Development of the Annelides. By M. Sars. (With 



a Plate.) 183 



XXI. Botanical Notices from Spain. By Moritz Willkomm 189 



