XI 



p. go 

 Lloyd, J. H., M.Sc, F.Z.S., Assistant Lecturer and 

 Demonstrator in Zoology at University College, 

 Cardiff. 



)Some Observations on the Structure and Life-History 

 of the Common Nematode of the Dogfish {Scyllium 

 canicala). (Text-figures 1-3.) 449 



Mehra, Haru Ram, M.Sc, Professor of Zoology, Hindu 

 Universit}^, Benares. 



On the Sexual Phase in certain Indian Naididse 

 (Oligochseta). (Text-ligiires 1-3.) 457 



MrrcKELL, P. Chalmers, C.B.E., M.A., D.Sc, LL.D., 

 F.R.S., Secretary to the Society. 



Report on the Additions to the Society's Menagerie 



during the month of April, 1920 437 



An Account, illustrated by lantern-slides, of his recent 

 Aeroplane Trip from Cairo to Tabora 438 



Report on the Additions to the Society's Menagerie 

 during the month of May, 1920 438 



Report on the Additions to the Society's Menagerie 

 during the months of June, July, August, and September, 

 1920 653 



Exhibition of, and remarks upon, a Double-tailed 

 Lizard 655 



Report on the Additions to the Society's Menagerie 

 durine- the month of October, 1920 656 



PocoCK, R. I., F.R.S., F.Z.S., Curator of Mammals and 

 Resident Superintendent of the Gardens. 



On the External and Cranial Characters of the 

 European Badger {Meles) and of the American Badger 

 {Taxidea). (Text-figures 1 9-25.) 423 



