PROCEEDINGS 



OF THE 



GENERAL MEETINGS FOR SCIENTIFIC BUSINESS 



OF THE 



ZOOLOGICAL SOCIETY OF LONDON. 



(May to December, 1909.) 



May 11, 1909. 



Prof. E. A. MiNCHix, M.A., Vice-President, 

 in the Chair. 



Mr. R. H. Burne, M.A., F.Z.S., exhibited a series of specimens, 

 from the Museum of the Royal College of Surgeons, of adaptive 

 structures for the respiration of air in some Aquatic Invertebrates 

 and tropical Freshwater Fishes. 



Mr. R. I. Pocock, F.L.S., F.Z.S. , the Superintendent of the 

 Gardens, exhibited the skin of a Monkey, representing a well- 

 marked undescribed local race of Cercopithecus tantalus, which he 

 proposed to name Cercopithecus tantalus alexandri in honour of 

 Capt. Boyd Alexander, F.Z.S., who had brought the specimen 

 from Lake Chad and presented it to the Society. He said : — 

 " The colour of the upper side of this specimen is speckled 

 greyish green, the coloured annuli in the hairs being less green 

 than is usually the case in Nigerian examples of G. tantalus, but 

 as in the latter it becomes richer on the crown of the head ; the 

 face is wholly black and the white brow-band is well marked. The 

 whiskers, however, are very long, as in C. cethiops of Abyssinia 

 and the Upper Nile ; but instead of being wholly white, as in 



Piioc. ZooL. Soc— 1909, No. XXXYIII. 38 



