218 NOTES AND EXHIBITS. 



other Australian record of the occurrence of this parasite in the 

 horse was one by Miss Sweet, D.Sc, who examined Victorian 

 specimens from the kidney. Dr. Cleland also collected examples 

 of the larvae of Gastrophilus nasalis (Linn.) from the duodenum, 

 the usual habitat being the stomach. Other Entozoa included 

 three species of Trichocephalus, viz., T. 7iodosus Rud., from rats 

 (Mus rattus) and mice {Mus musculus); T. c^^enatus Rud., from 

 the pig; and T. affinis Rud., from sheep and cattle. The first 

 species had not been previously recorded from Australia, and the 

 second species only once (Perrie, 1892, in New South Wales). 

 Another species belonging to the same family (^T richotrachelidce) 

 of Nematodes as the above, viz., Trichosoma hejjatica (Bancr.) 

 occurs very commonly in the liver of local rats and mice (Mus 

 rattus, M. alexandrinus, M. decumanus, M. musculus). It has 

 not been previously recorded from this State. Dr. Bancroft 

 described it from Brisbane rats {M. 7'attus), and Dr. Cleland 

 indicated its presence (though without naming it) in West Aus- 

 tralian rats {M. rattus). The above thus probably constitute the 

 first records of the occurrence of this parasite in M. decumauus and 

 M. musculus in Australia. Spiroptera ohtnsa Rud., a common 

 parasite in the stomach of the above four species of 2fus in 

 Sydney, had not been previously reported from the Common- 

 wealth. Three species of the Cestode genus Hymenolejns were 

 exhibited. //. (Drepanidotaenia) lanceolata (Bloch) from the 

 goose; H. murina (Duj.) from Mus decumanus, M. rattus and M. 

 musculus; and H. diminuta (Rud.), fairly common in the intes- 

 tine of the same three species of Mus, and rarely in M. alexan- 

 drinus. None of these tapeworms had been previously recorded 

 from the continent. This last remark also applied to Giganto- 

 rhynchus moniliformis Bremser, which occurs fairly commonly 

 in Mus rattus and occasionally in M. decumanus in Sydney. 

 Haemogregarina (Leucocytozoon) muris Balf., was receritly found 

 in the leucocytes of a rat (Mus decumanus) which was also 

 infested by Try^mnosoma lewisi. The only other Australian 

 reference to this interesting parasite was one by Dr. Cleland, who 

 found it in West Australia. Ilaemonchus contortus (Rud.) from 



