BY T. HARVEY JOHNSTON. 67 
Stegomyia fasciata (syn. 8. calopus) is pethaps a trans- 
mitter of dengue (Manson. Edit. 5, 1914, p. 272). 
HEMIPTERA. 
Amongst the Hemiptera, the rat louse, H#matopinus 
(Polyplax) spinulosus, is known* to be a carrier of 
Trypanosoma lewisi, Kent, which parasitises the blood 
of rats in Australia and elsewhere. 
MOLLUSCA. 
Amongst the molluscs, various developmental stages 
of Trematodes and Cestodes must occur, but their presence 
bas not been repcrted. 
ANNULATA. 
Leeches, no doubt, serve as intermediate hosts of the 
Trypanosomes, Hemogregarines and Hemocystidium 
occurring in fresh water tortoises and the trypanosomes 
of our eels, catfishes and frogs. 
Hemogregarina (Lankesterella) hyle of the green frog, 
Hyla cerulea, is probably transmitted by a freshwater 
leech during the aquatic stage of the host. 
Entomostraca certainly serve as the intermediate 
host of many of the Cestodes infesting our birds. No doubt 
some of the Oliogochetes do also. 
Various Nematomorpha frequent our fresh waters, 
but none have been described either in the parasitic or in 
the free living stage except Parachordodes annulatus, 
Linstow, 1906. I have mentioned the presence of 
Gordius sp. (free form) at Montville (T.H.J., P.R.S., Q. 
Zila), nolo. piv. Tryon, 1911, p.)73'; 1912) p00 kas 
also referred to its occurrence in several localities (Eudlo, 
Beaudesert, Rockhampton). 
I desire to express my thanks to Messrs. Longman 
and Ogilbyf, of the Queensland Museum, for assistance in 
regard to the names of some of the hosts. 
*E. Rodenwaldt. Trypanosoma lewisi in Hematopinus spinulosus, 
Centr. Bakt., 1, Orig., 52, 1909, p. 30-42. 
tJ. D. Ogilby. The Commercial Fishes and Fisheries of Queensland. 
An essay. Govt. Printer, Brisbane, 1916. 
