TRANSACTIONS 



OP THE 



EOYAL SOCIETY OF VICTORIA. 



VOL. II. PAET I. 



1890. 



CONTENTS. 



THE TRANSVEESE SECTIONS OF PETIOLES OF EUCALYPTS AS 

 AIDS IN THE DETERMINATION OF SPECIES, by D. McAlpine, 

 F.C.S., AND J. R. Kemfrey. (With Plates 1, 2, 3, 4, 5, 6, and 6a) - 1 



THE A^ICTORIAN LAND PLANARIANS, by Arthur Dendy, M.Sc, F.L.S., V 



Demonstrator and Assistant Lecturer in Biology in the University 

 OF Melbourne. (With Plate 7) - - - - - - - 65 



THE EUCALYPTS OF GIPPSLAND, by A. W. Howitt, F.G.S. (With 



Plates 8, 9, 10, 11, 12, 13, 14, 15, 16) ------ 81 



A NEW FAMILY OF HYDROIDEA, TOGETHEFv WITH A DESCRIPTION 

 OF THE STEUCTURE OF A NEW SPECIES OF PLUMULAEIA, 



by W. Baldwin Spencer, M.A., Professor of Biology in the University 



OF Melbourne. (With Plates 17, 18, 19, 20, 21, 22, 23) - - - 121 



EDITED BY PROFESSOE W. BALDWIN SPENCER, M.A., HON. SEC. 



■^ MF, 



MELBOURNE. 

 PUBLISHED FOR THE ROYAL SOCIETY 

 BY THE SPECTATOR PUBLISHING COMPANY LIMITED, 270 POST OFFICE PLACE. 



April, 1891. 



