W. Nicoll 
125 
in H. similis they barely reach the intestinal bifurcation. The uterus 
has much the same configuration as in H. similis and it forms the highly 
characteristic posterior convolutions, which almost completely surround 
the testes. The mature ova resemble those of the type species, but are 
slightly smaller. They do not exceed 0 - 2 x 0'08 mm. in dimensions. 
Family Notoeotylidae. 
Notocotylus attenuatus (Rud.). 
This parasite, which is so common in European ducks and geese, 
has been found here in six different birds, the green goose-teal (. Nettopus 
pidchellus), the pied goose ( Anseranas semipalmata), the black duck 
[Anas superciliosa), the stone-curlew ( Burhinus grallarius), the spur¬ 
wing plover ( Lobivanellus lobatus), and the black swan ( Clienopsis 
atrata). 
It was found first in considerable numbers in the intestine of the 
only pied goose I have examined, and two immature specimens were 
obtained from the caeca of one of two goose-teal. It is not at all 
common in the black duck for only a single specimen was obtained from 
the intestine of one bird out of nineteen. 
Only a few specimens were obtained from the caeca of the stone- 
curlew. 
REFERENCES 
Braun, M. (1902). Die Fasciolidae der Vogel. Zool. Jahrbucher, Abt. f. Syst. vol. 
xvi. 
Dietz, E. (1910). Die Echinostomidae der Vogel. Ibid. vol. xn., Suppl., Part 3. 
Odhner, T. (1913). Zum natiirlichen System der digenen Trematoden, vi. Zool. 
Anzeig. vol. xlii. 
EXPLANATION OF PLATES VI AND VII. 
Fig. 1. Opisthorchis obsequens ( X 24). 
Fig. 2. OrcMpedum sufflavum ( X 10). 
Fig. 3. Orchipedum sufflavum. L.S. Shell gland complex ( X 50). 
Fig. 4. Ecliinostomum acuticauda (x 10). 
Fig. 5. Ecliinostomum emollitum (X 17). 
Fig. 6. Ecliinostomum hilliferum ( X 7). 
Fig. 7. Ecliinochasmus prosthovitellatus ( X 40). 
Fig. 8. Platynotrema biliosum (X 20). 
Fig. 9. Platynotrema biliosum. L.S. Cuticle and subcuticular tissue. 
