CONTENTS OF VOL. XVIII. 



[SEVENTH SERIES.] 



NUiMBEK cm. 



Page 



I. On a Tootli of Ceratodiis and a Diiiosaurian Claw fiom the Lower 

 Jurassic of Victoria, Australia. B}^ A. Smith Woodward, LL.D., 

 F.ll.S., of tlie British Museum. (Plate I.) 1 



II. Notes on Irish Ilydrachuida ; with Descriptions of a new 

 Genus and Two new Species. By J. N. Halbert. (Plate II.) . . 4 



III. Preliminary Descriptions of new Species of Amphipoda from 

 the ' Discovery ' Antaiciic Expedition, 191)2-11)04. By Alfred U. 

 AV'alker, F.L.S., F.Z.S 13 



IV. Rhynchotal Notes.— XXXVIII. By W. L. Distant 18 



V. On some West-African Species of Barbus. By G. A. 

 BOULENGEB, F.R.S 32 



VI. Description of a new Barbus from the Uganda Protectorate. 



By G. A. BouLENGER, F.R.S 3(3 



VII. Description of a new Mormyrid Fish from South Cameroon. 



By G. A. Boui-ENGER, F. U.S ih. 



VIII. Description of a new Tree- Viper from Mount Ruwenzori. 



By G. A. BouLENGER, F.R.S 37 



IX. Alternation of Generations, Metamorphosis, and Direct 

 Development. By W. WEDEKi>fD 38 



X. Natural History Notes from the R.I.M.S. Ship 'Investigator,' 

 Capt. T. H. Heming, R.N., commanding. — Series HI., No. 13. Two 

 new Barnacles dredged in 1905-6. By N. Annaxdale, D.Sc, 

 Indian Museum, Calcutta 41 



