22 
THE TREMATODE PARASITES OF NORTH 
QUEENSLAND. III. 
PARASITES OF FISHES. 
By william NICOLL, M.A., D.Sc., M.D. 
{Australian Institute of Tropical Medicine, Townsville, Queensland.) 
(With Plates IV and V.) 
CONTENTS. 
Introduction 
PAGE 
22 
Genus 
Maculifer .... 
23 
J5 
Coitocoecum 
25 
99 
Aephnidiogenes . 
26 
99 
Genolopa .... 
29 
99 
Sterrhurus 
32 
99 
Ectenurus .... 
33 
99 
Xenopera .... 
34 
99 
Opistholebes 
36 
99 
Gyliauchen 
37 
99 
Buceplmlopsis . 
39 
References ..... 
40 
Explanation of Plates 
41 
During the past year a considerable number of fishes has been 
forwarded to the Institute for examination. The great majority have 
been marine fishes obtained from Cleveland Bay, or from the reefs off 
Magnetic Island, but a few fresh-water fishes from local creeks have 
also been included. 
From one point of view the result of this investigation is rather 
disappointing as only a comparatively low percentage (48 %) of fish 
were found to be infected with worms of any kind, while Trematode 
parasites were found in only 21 %. This, however, was compensated 
for by the rich variety and interesting nature of the worms collected. 
The few which are described in this paper appear to indicate that the 
