334 
Queensland Trematodes 
It is thus evident that a large field remains practically untouched, 
and that is particularly the case in North Queensland, where until 
recently very few observations have been made. Bancroft showed that 
many of the Queensland birds were infected with worm parasites but he 
made no attempt to identify or describe such forms as he met with. 
Krefift recorded the occurrence of several unidentified Trematodes in 
Queensland, while the common Paramphistomum cervi was found by 
Cobb (1891) in the ox, and by Krefft (1871) in the sheep. In addition 
to the cestodes described by Krefft a few forms have been recorded from 
North-East Australia, chiefly bv Zscholcke. Only a few, mainly 
unidentified Nematodes, have been recorded from Queensland, for the 
most part by Krefft. Yon Linstow (1898) has described three other 
species. Only one Echinorhynch, Gigantorhynchus semoni, has been 
recorded (von Linstow, 1898). 
This constituted our entire knowledge of the helminth parasites of 
Queensland animals prior to the foundation of the Australian Institute 
of Tropical Medicine in 1910. In that year a thorough systematic 
investigation of the available native fauna was commenced by Dr Breinl, 
with the result that a comparatively large collection of worm parasites 
has been gathered together, many of which are of considerable interest. 
Several of these have already been described in the above mentioned 
papers of T. H. Johnston and S. J. Johnston and in the recently pub¬ 
lished Annual Keport of the Institute (Breinl, 1913). 
The collection now contains specimens of 49 species of Trematodes 
from Queensland and the Northern Territory. Ten of these are 
already known species, while seven new forms have been described by 
S. J. Johnston. In the present paper an additional twelve new species 
are recorded, two of which represent new generic types. 
Family OPISTHORCHIIDAE. 
Genus Clonorchis Looss. 
Clonorchis sinensis Cobbold. 
Two small lots of Clonorchis, as well as one mounted specimen, are 
present in the museum. The mouuted specimen and one of the bottles 
were presented by Dr C. L. Strangman, Port Darwin. The origin of 
the other lot is unknown. In the specimen presented by Dr Strangman 
the length varies from 17'5 mm. to 21 mm., and the breadth from 4 mm. 
to 4 - 3 mm. The figures exceed the limit usually given for this parasite. 
