xxii First Report on Economic Zoology. 
Mollusca Some mollusca may carry germs, as oysters and cockles 
carry typhoid. 
Tunicata None. 
Fish None. 
Mammalia The imperfectly cooked flesh of various mammals may 
carry disease to man, as the flesh of pigs (cysts of Taenia 
solium, and Trichina spiralis, thus producing tapeworm 
and trichinosis in man) ; the flesh of oxen (cysts of 
tapeworms, Taenia saginata) ; milk of cow and other 
animals carries tuberculosis. 
GROUP E. 
Animals which concern Man as causing bodily injury or disease 
(both possibly of a deadly character) to (A) his stock of 
Domesticated Animals ; or (B) to his Vegetable Plantations ; 
or (C) to Wild Animals; or (D) Wild Plants in the pre- 
servation of which he is interested. 
The examples coming in this group are somewhat similar to those in 
Group D, but in addition must be included also worms and insects, which 
destroy crops and fruit, garden produce and forest trees, and such pests as 
the frugivorous birds, rabbits and voles. This forms the largest group, 
and is directly connected with the cultivation and improvement of land 
by tillage and forestry, and the animals used by man in carrying on his 
work, and kept for the improvement of the soil and food. 
The sub-groups may conveniently be divided into smaller groups or 
sections. 
Survey of Sub-group A of Group E. 
ANIMALS WHICH CONCERN MAN AS CAUSING BODILY INJURY OR 
DISEASE (BOTH POSSIBLY OF A DEADLY NATURE) TO HIS STOCK 
OF DOMESTICATED ANIMALS. 
This sub-group may be divided into smaller groups or sections as 
follows : — Animals which concern man as causing bodily injury and 
disease to his stock of domesticated animals, i.e. (a) cattle ; (/3) sheep and 
goats ; (y) horses, asses and mules ; (8) the pig ; (e) elephant and camel ; 
(£) guinea pig ; ( rj ) dogs and cats ; (6) rabbits, and (i) poultry. 
Survey of Section (a) of Sub-grouf A. 
ANIMALS CAUSING BODILY INJURY AND DISEASE TO CATTLE. 
I. By direct injury. 
Protozoa None. 
Platyhelmia Tapeworms ( Moniezia pianissimo) and cysts ( Cysticercus 
bovis, C. tcnuicollis ) produce disease ; also flukes ( Disto - 
mum hcpaticum , D. magna). 
Nematoda Numerous thread and round worms ( Ascaris , Triclio- 
ccphalus, etc.). 
Chsetopoda None. 
