1894.] ON VARIATION IN THE ANTLERS OF THE FALLOW DEEE. 485 



species, which in his paper on Cercopithecus he had placed in the 

 appendix as unknown to him, was the same as C. erxlebeni of 

 Pucheran (op. cit. p. 254). Therefoi'e, if the strict law of priority 

 were followed, Eraser's name would be adopted for this species ; 

 but, as it was doubtful whether Fraser's name (Cat. Knowsley Coll. 

 p. 8), though in print, had ever been published, Mr. Sclater did 

 not propose to use it. 



Mr. H. Scherren, F.Z.S., exhibited the nest of an Amphipodous 

 Crustacean (Amphithoe littorina), and made the following remarks : 



" The Amphipods in the bottle are probably Amphithoe littorina 

 of Spence Bate. They were taken at Jersey on May 14th, and 

 have lived ever since in the bottle in which they are now exhibited. 

 The nests and runs are at the bottom of the bottle. I have had the 

 opportunity, which Mr. Spence Bate did not enjoy, of watching the 

 nests made. The Amphipod gathered sand-grains and vegetable 

 debris with its antennae, till the material was within reach of its 

 gnathopods. The material was then applied to the mouth, probably 

 in order to cover it with some adhesive secretive, and then pressed 

 down by the feet to the structure, the creature lying on its side the 

 while. There are tubes in the floating weed constructed probably 

 by this species. An individual now in the possession of Mr. Pocoek, 

 of the British Museum (Natural History), made such a tube in 

 the course of one night." 



Prof. Bay Lankester, F.B.S., read a paper on the external 

 characters which distinguish the tAvo Dipnoid fishes Lepidosiren 

 and Protopterus, and pointed out that there could be no doubt that 

 these two forms should be referred to distinct genera. 



This memoir will be printed in the Society's ' Transactions.' 



The following papers were read : — 



1. Notes on some Specimens of Antlers of the Fallow Deer, 

 showing Continuous Variation, and the Effects of Total 

 or Partial Castration. By G. Herbert Fowler, B.A., 

 Ph.D., Assistant-Professor of Zoology, University 

 College, London. 



[Received May 18, 1894.] 

 (Plate XXXIV.) 



By the kindness of my friend Mr. J. A. "Wallace of Loch Byan, 

 N.B., I am enabled to exhibit to the Society an interesting pair 

 of antlers of the Fallow Deer, put up by a 'rig,' or buck castrated 

 on one side. I have not been able to trace any description of 



Proc. Zool. Soc— 1894, No. XXXII. 32 



