1896.] THE BBOBBTABX ON ADDITIONS TO THE MBNAGBEIB. 303 



The last three or four tracheal rings are closely united, but not 

 fused, to form a box, and there is a well-marked pessulus. The 

 first bronchial semiring, to which the intrinsic muscles are attached, 

 is much longer from back to front, and is arched in the usual way. 

 After this follows a rather deep semiring, which is immediately 

 succeeded by several thinner bars ; these latter get deeper towards 

 the opening into the lungs. 



§ General Observations and Classification of the Laridae. 



In having no ambiens llhi/ncJiops is unique among the LaridsB, 

 but not among the Limicolas in general, if, that is to say, we 

 include, as I think should be done, the Auks in the LimicoliB. In 

 the latter group tiie ambiens is sometimes present and sometimes 

 absent. The Gull-tribe can be conveniently (even it merely arti- 

 ficially) di\'ided up as follows, Rhynclwps undoubtedly belonging 

 to a distinct subfamily, not definitely nearer to the Terns than to 

 the Gulls :— 



Sternince. ABXT-f-'. Cffica nipples. Biceps slip present. Ex- 



pansor secundariorum absent. 

 Bhyncliopinoi. A13XY — . Cteca nipples. Biceps slip and ex- 



pansor secundariorum absent. 

 Larince. AXY-|-. Coeca nipples, biceps slip, and expansor 



secundariorum present. 

 Stercorariince. AXY4-. Cseca long. Biceps slip present. Ex- 



pansor secundariorum absent. 



I should regard Gygis as a Gull and Anous as a Tern, on 

 account of their leg-muscles; but then Anous has the expansor 

 secundariorum. These two genera require further investigation 

 before they can be placed ; and I am a little suspicious that they 

 may be found to destroy the neatness of the above arrangement. 



March 3, 1896. 



Sir W. H. Flowee, K.C.B., LL.D., F.E.S,, President, 

 in the Chair. 



The Secretary read the following report on the additions to the 

 Society's Menagerie during the month of February 1896 : — 



The total number of registered additions to the Society's Mena- 

 gerie during the month of February was 60, of which 20 were by 

 presentation, 2 by birth, 17 by purchase, 2 in exchange, and 9 

 were received on deposit. The total number of departures during 

 the same period by death and removals was 79. 



The following additions are of special interest : — 



1. A young male Klipspringer Antelope {Oreotragus saltator), 

 presented by Commander Alfred Paget, K.N., H.M.8. ' Dolphin,' 

 Port Said. 



' AXY-f in a speciea of Stemula (Forbes, MS.). 



