No. 118. 



ABSTRACT OF THE PROCEEDINGS 



OF THE 



ZOOLOGICAL SOCIETY OF LONDON/ 



March 18th, 1913. 



E. G. B. Meade-Waldo, Esq., Vice-President, 

 in the Chair, 



The Minutes of the last Scientific Meeting were confirmed. 



The Secretary read a Report on the Additions made to the 

 Society's Menagerie during the month of February, 1913. 



Miss Edith E. Bamford presented a paper, communicated by 

 Dr. H. Gadow, F.R.S., F.Z.S., entitled "Variations in the 

 Skeleton of the Pectoral Fins of Polyptertts." An examination 

 had been made of the ample material brought back by Budgett 

 from his West African Expeditions, in order to account for the 

 discrepancies wliich occur in the descriptions of the fins of 

 Polypterus as given by different investigators. These discre- 

 pancies were found to be due to the very numerous variations in 

 the fins and to the previous scarcity of material, 



A description is given of the variations found in the radials, 

 mesopterygium, propterygium, metapterygium, and the distal 

 cartilages, and their bearing on the different descriptions and the 

 theories of other investigators is indicated. 



Mr. H. H. Stirrup, D.Sc, contributed a paper, communicated 

 by Prof. F. W. Gamble, F.R.S., F.Z.S., containing a descriptive 

 study of an Oligochsete Worm of the family Enchytrseidfe. A 

 number of new and interesting observations were recorded therein, 



* This Abstract is published by the Society at its offices, 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 charge, 

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

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

 the sum of Six Shillings per aniium, payable in advance. 



