THE 
ZOOLOGICAL RECORD 
VOLUME THE FIFTIETH 
BEING 
RECORDS OF ZOOLOGICAL LITERATURE 
RELATING CHIEFLY TO THE YEAR 
1918 
Compiled by the Regional Bureaus of the International Catalogue of 
Scientific Literature ; 
SUPPLEMENTED AND ARRANGED FOR THE ZOOLOGICAL SOCIETY 
OF LONDON 
II Y 
D. Sharp, H. M. Woodcock, R. W. Harold Row, A. KnyvettTotton, «T. S. Dunkerley, 
H. L. Hawkins, F. W. Edwards, LI. B. Preston, W. T. Calman, 
C. T. Regan, W. L. Sclater, and R. Lydekker 
superintended by 
DAVID SHARP, M.A., F.R.S., F.Z.S., &c. 
Explorate solum : sic fit via certior ultr A. 
LONDON: 
PRINTED FOR THE SOCIETY; 
SOLD AT THEIR HOUSE IN REGENT’S PARK 
M.DCCCCXV. 
