xxii First Report on Economic Zoology. 



jMollusca Some moUasca may carry germs, as oysters and cockles 



carry typhoid. 



Tunicata Noue. 



Fish Noue. 



Mammalia The imperfectly cooked flesh of various mammals may 



carry disease to mau, as the flesh of pigs (cysts of Tssnia 

 suliam, and Trichina spiralis, thus producing tapeworm 

 and trichinosis in man) ; the flesh of oxen (cysts of 

 tapeworms, Txnia sagiaata) ; 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 {G) 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 U, 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 tlie 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 aud 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 OP 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 ; (/S) sheep and 

 goats ; (y) horses, asses and mules ; (8) the pig ; (c) elephant and camel ; 

 iX) guinea pig ; (ji) dogs and cats ; {p) rabbits, and (i) poultry. 



Survey of Section (o) of Sub-group A. 



ANIMALS CAUSING BODILY INJURY AND DISEASE TO CATTLE. 



I. Bij direct injury. 



Protozoa None. 



Platyhelmia TargQwovxn.?, [Moniczia lylanissima) and cysts (Cysticercus 



bovis, C. tenuicoUis) produce disease ; also flukes {Disto- 



inum liepaticum, D. rtiagna). 

 Nematoda.. Numerous thread and round worms {Ascaris, Tricho- 



ccplialus, etc.). 

 Chsetopoda None. 



