No. 166. 



ABSTRACT OF THE PROCEEDINGS 



OF THE 



ZOOLOGICAL SOCIETY OF LONDON.^ 



March 30th, 1917. 



Dr. A. Sjiith Woodward, F.R.S., Yice- President, 

 in the Chair. 



The Minutes of the last Scientific Meeting were confirmed. 



Mr. R. I. PococK, F.R.S., F.Z.S., Curator of Mammals, ex- 

 hibited a young Lion Cub recently deposited in the Gardens, and 

 also a Galago from German East Africa presented by Commander 

 R. J. N. Watson. 



Prof. J. P. Hill, D.Sc, F.R.S., presented a memoir by Mr. E. 

 Phelps Allis, Junr., F.Z.S., entitled " The Pi-echordal Portion of 

 the Chondrocranium of Chimcera coUieV 



Mr. D, M. S, Watson, M.Sc, F.Z.S., gave an account of a 

 paper entitled " A Sketch-classification of the Pre-Jurassic 

 Tetrapod Vertebrates." The following is a summary of his 

 remarks : — 



The classification introduced in this paper is founded on 

 a detailed consideration of all parts of the skeleton of such 

 old amphibia and reptiles as are at all well known. In previous 

 papers the axitlior has analysed the features presented by many 

 of these foi-ms, distinguishing between those which are common 

 to all early reptiles and those which are restricted to definite 

 stocks ; the latter being divided into those dependent on 

 •' adaptive radiation " and the more fundamental chfiracters, 

 especially those of the brain -case and ear, which are not to be 

 correlated with any special mode of life. These non-adaptive 



* This Abstract is published by the Society at its ofBces, Zoological Gardens, 

 Regent's Park, N.W., on tlie Tuesday following the date of Meeting to which 

 it refers. It will be issued, along with the ' Proceedings,' free of extra chara-e, 

 to all Fellows who subscribe to the Publications ; but it may be obtained on llje 

 day of publication at the price of Sixpence, or, if desired, sent post-free for 

 the sum of Sia: Shillingi per annum, payable in advaace. 



