IV 
PREFACE. 
(3) E. Bergroth. — Additions and Corrections to the 1 Index Zoologicus ’ of 
C. O. Waterhouse. Second Series. Zoologist, 1908, pp. 252-255. 
(4) R. T. Leiper. — Some generic names that have been omitted from recent 
zoological indices. Zoologist, 1908, p. 390. 
(5) C. 0. Waterhouse. — Supplementary List of Generic Names. London, 1904. 
In addition to these published lists Mr. Waterhouse has included 
in this Index about 774 names discovered by himself as omitted ; 
also some 70 names furnished by Mr. L. Prout, as well as some 
contributed by other naturalists. To all of whom we tender our 
thanks for their assistance. 
We desire also to thank the Council of the Zoological Society 
for trusting our discretion by giving us full liberty as to the 
publication ; and to acknowledge gratefully the assistance we 
have received from Dr. P. Chalmers Mitchell, the Secretary of 
the Society. 
In the first € Index Zoologicus ’ it was estimated that the 
number of names in Scudder’s i Nomenclator 3 is about 80,000. 
To this number was added some 40,000 in that Index. In the 
volume we are now issuing some 22,000 are recorded, of which, 
however, an uncertain number are due to erroneous readings. 
Making a full allowance for this we may conclude that about 
140,000 names have been, up to the present time, proposed for the 
genera and subgenera of Zoological taxonomy. 
B rock enh urs t, 
October 28th, 1912. 
D. SHARP, 
Editor of the 1 Zoological Record . 3 
