PAPERS. 



Page 



15. The Life-History and Habits of two Parasites of Blow-flies. By A. M. Altson. With 



an Introduction by Prof. H. Maxwell Lefroy, F.Z.S. (Text-figures 1-20.) ...... 195 



16. A Eevision of the Nematode Family Guathostomidse. By H. A. Baylis, M.A. Oxon., 



Assistant in the Department of Zoology, British Museum (Natural History), and 

 Clayton Lane, M.D.Lond., Lt.-Col. I.M.S. (ret.). (Text-figures 1-40 ; Plates I.- 

 VIII.) 245 



17. Contributions to a Study of the Dragonfly Fauna of Borneo. — Part IV. A List of 



Species known to occur in the Island. By F. F. Laidlaw, M.A. (Cantab.), F.Z.S. 

 (Text-figures 1-4.) 311 



18. On some new Therocephalian Eeptiles from the Karroo Beds of South Africa. By 



E. Broom, M.D., D.Sc, F.E.S., O.M.Z.S. (Text-figures 1-9.) 3-13 



19. Chalicotheroidea from Baluchistan. By C. Forster-Oooper, M.A., F.Z.S,, Super- 



intendent of the University Museum of Zoology, Cambridge. (Plate I. and Text- 

 figures 1-7.) 357 



20. Fauna of Western Australia. — III. Further Contributions to the Study of the 



Onychophora. The Anatomy and Systematic Position of West Australian Peripa- 

 toides, with an account of certain histological details of general importance in the 

 study of Peripatus. By Wsi. J. Dakin, D.Sc, F.Z.S., F.L.S., Professor of Biology, 

 University of Western Australia. (Plates I.-V.) 367 



21. Notes on Marine Wood-boring Animals. — I. The Ship-worms (Teredinidse). By 



W. T. CALM.iN, D.Sc. (Text-figures 1-11.) 391 



22. Eeport on Entozoa collected from Animals which died in the Zoological Gardens of 



London during Bight Months of 1919-1920, By G. M. Vevers, M.E.C.S., L.E.C.P., 

 F.Z.S., Beit Memorial Eesearch Fellow, Demonstrator in Helminthology at London 

 School of Tropical Medicine, and Hon. Parasitologist to the Zoological Society of 

 London • . . . • 405 



23. On a Collection of Tailless Batrachians from East Africa made by Mr. A. Loveridge 



in the years 1914^1919. By Miss Joan B. Procter, F.Z.S. (Text-figures 1-4.) .. 411 



24. On the Type-specimen of Rana holsti Boulenger. By Miss Joan B. Procter, F.Z.S. 



(Text-figure 5.) 421 



25. On the External and Cranial Cliaracters of the European Badger (Meles) and of the 



American Badger (Taxidea). By E. I. Pocock, F.E.S. (Text-figures 19-25.) 423 



