Issued July 5, 1910. 
U. S. DEPARTMENT OF AGRICULTURE, 
BUREAU OF ANIMAL INDUSTRY— Bulletin No. )9. 
A. D. MELV1N, Chief ok Bureau. 
INDEX-CATALOGUE 
MEDICAL AND VETERINARY ZOOLOGY. 
PART 27. 
[Authors: Schoch to Silvestrini.] 
CH. WARDELL STILES, Ph. D., 
Consulting Zoologist, Bureau of Animal Industry; Professor of Zoology , 
U. S. Public Health and Marine-Hospital Service, 
AND 
ALBERT HASSALL, M. R. C. V. S., 
Assistant in Zoology, Bureau of Animal Industry. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1910. 
