1886.] MR. COCKERELL ON PARMACELLA VALENCIENNESI. 137 
March 2, 1886. 
Dr. St. George Mivart, F.R.S., Vice-President, in the Chair. 
The Secretary read the following report on the additions made to 
the Society’s Menagerie during the month of February 1886 :— 
The total number of registered additions to the Society’s Mena- 
gerie during the month of February was 79, of which 3 were by 
birth, 40 by presentation, 14 by purchase, 1 by exchange, and 21 
* were received on deposit. The total number of departures during 
the same period, by death and removals, was 99. 
Amongst the additions during the month attention may be called 
to :— 
1. Five examples of a large Batrachian of the Argentine Republic, 
there called ‘‘ Escuerzo”’ (Ceratophrys ornata), presented by Dr. 
Frederick C. Strutt, and received February 13th. 
2. A Mantled Buzzard (Leucopternis palliata) from Brazil, pur- 
chased February 15th, being the first example of this fine bird of prey 
received by the Society. 
Mr. John G. Millais, F.Z.S., exhibited an adult male specimen of 
the Ivory Gull (Larus eburneus), which he had shot himself at Thurso, 
Caithness, on December 30, 1885, during a severe snowstorm from 
the north. The base of the bill to the end of the nostril in living 
specimen was light blue, and the point of the same orange-yellow ; 
feet black, and eye surrounded by a ring of orange; the rest of the 
plumage being entirely white. 
Mr. Millais also exhibited an immature specimen of the same 
species killed at East Haven, Forfar, in January 1879. 
Mr. T. D. Cockerell exhibited a living specimen of a variety of 
Parmacella valenciennesi, Webb and Van Beneden, collected by J. H. 
Ponsonby, Ksq., at Tangier, and made the following remarks :—The 
specimen differs from the typical P. valenciennesi in that it is marked 
with black, the original figure of the species being quite uniform. 
It may possibly prove to be distinct, but until further details are 
ascertained it is best classed merely as a variety of P. valenciennest. 
A precisely similar form is found at Gibraltar, of which there are 
details in {he ‘Journal of Couchology ’ for January 1886. 
The following papers were read :— 
Proc, Zoox, Soc.—1886, No. x. 10 
Zau\SH, Migs 
CLAN ae D) 
