CoNTKNTS {continued). 



Paga 



December 7, 1886. 

 rof. Bell. Exhibition of, and remarks upon, a specimen of Tania nana 505 



Observations on the Development and Structure of the Ovum in the Dipnoi. By Frank 

 E. Beddard, M.A., F.R.S.E., Prosector to the Society, and Lecturer on Biology at 

 Guy's Hospital. (Plates LII.-LIV.) 50.5 



On the Anatomy and Systematic Position of the Liassic Selachian, Squaloraja pdy- 

 spondyla, Agassiz. By A. Smith Woodward, P.G.S., of the British Museum (Natural 

 History). (Plate LV.) r)27 



On an apparently new Parrot of the Genus Conurus living in the Society's Gardens. By 



P. L. ScLATER, M.A., Ph.D., F.E.S., Secretary to the Society. (Plate LVI.) 538 



On an undescribed Pimelepterus from Port Jackson. By J. Douglas Ogilby, Department 

 of Fishes, Austr. Mus. Sydney. (Communicated by'F. Day, C.I.E., F.Z.S.) 539 



On the South-African Tortoises allied to Testtido geometrica. By G. A. Boulenger. 



(Plates LVII. & LVIII.) 540 



. Remarks on Prof. W. K. Parker's paper on the Skull of the Chameleons. By G. A. 



Boulenger 543 



On the Wallaby commonly known as Lagorchestes fasciatus. By Oi.dfield Thomas, 



Natural History Museum. (Plato LIX.) 544 



On Phascologale Virginia, a rare Pouched Mouse from Northern Queensland. By Robert 

 CoLLETT, C.M.Z.S. (PlateLX.) 548 



December 21, 1886. 



'he Secretary. Report on the Additions to the Society's Menagerie in November 1886 .... 549 



Ir. Howard Saunders. Exhibition of, on behalf of Mr. R. J. Howard, and remarks upon, 



a specimen of a hybrid between the Tufted Duck and the Pochard 550 



On Atavism. A Critical and Analytical Study. By J. Bland Sutton, F.R.C.S., Lecturer 

 on Comparative Anatomy, Middlesex Hospital, Erasmus Wilson Lecturer on Patho- 

 logy, Royal College of Surgeons <*»M 



!. On the Systematic Position and Classification of Sponges. By R. v. Lendenfjld, Ph.D., 



F.L.S., Assistant in the Biological Laboratory of University College, London 558 



5. On Indian Earthworms. — Part I. Preliminary Notice of Earthworms from the Nilgina 

 and Shevaroys. By Alfred Gibes Bourne, D.Sc. (Lond.), F.L S., Fell. Univ. Coll. 

 Lond., Fell. Madras Univ., Professor of Biology in the Presidency College, Madras. 

 (Communicated by Prof. Ray Lankester, F.Z.S.) 662 



Appendix : List of Additions to the Society's Menagerie during the Year 1886 073 



tndex 699 



litle-page. Lists of Contributors and their Articles, of Plates, and of Woodcuts in Volume. 



