BY T. HARVEY .lOHNSTON M.A., D ^C 75 



A larger species of Ascaris from the stomach of 

 Phalacrocorax carbo, shot by Dr. Cleland on the Hawkes- 

 hury River, N.S. Wales, is of the same general appearance, 

 but does not agree entirely with the available accounts 

 of .4. spiculiyera. 



Amblyonema terdentatum, Linstow (1898, p. 470). 

 This species of nematode has been found quite commonly 

 by Dr. Bancroft and myself in the spiral valve of specimens 

 of Neoceratodus forsteri, caught in the Burnett River. 

 In company with it, on one occasion, there were found 

 a few specimens of a small Amphistoma. 



Oxyuris ohvelata, Bremser. 



Occurs in Mus decumamis, M. rattus and M. musculus 

 in Brisbane. Xot previously recorded. 



Trichosoma hepaticum, Raill. 



Found in the liver of Mus decmnanus, M. rattus (alex- 

 andrinus), and M. musculus in Brisbane. Its presence 

 in Queensland was recorded by Dr. Bancroft (18936, p. 89)) 

 who described it from Mus rattus as Trichocephalus hepaticus. 

 It was originally described by Railliet under the same 

 specific name. 



Trichodes crassicauda, Bellingham. 



Occurs in the bladder of 31 us decumanus (Brisbane). 

 Xot previously reported from this State. 



Spiroptera obtusa, Rud. 

 From the stomach of 3Ius musculus, M. alexandrinus 

 and M. decumanus in Brisbane. Apparently unrecorded 

 from this State. 



Hystrignathus hystrix (Cobb). 

 Cobb (1898, p. 315), originally described this species 

 as Xyo Tiystrix, it being the type of his genus Xyo. A 

 eomparison of Cobb's figure with those given by Leidy 

 (1853, PI. 7, Figs. 8, 9, 10), leads us to synonymise Xyo 

 with Leidy's Hystrignathus. 



Dr. Cobb did not actually give an account of his form, 

 but defined it by means of his " nematode formula " 

 and a figure. The host is quoted as beetle, Passalus, sp. 

 H. hystrix is a parasite of the large common passalid beetle, 

 found in rotten timber, and identified for me by Mr. W. 



