BY T. HARVEY JOHNSTON. 71 



Trichuris muris Schr. (syn. Trichocephalus nodosus R.) 

 J. 1909a, p. 218 ; 1909e, p. 480 ; Tidswell & Jnstn. 1912, 

 p. 112. 



Hepaticola hepatica Bancr. (generally known as Tricho- 

 soma or Capillaria hepatica) J. 1909a, p. 218 ; 1909e, p. 480 

 1912a, p. 75 (Brisbane). Tidswell & Jnstn 1912, p. 112. 



Gongylonema sp. J. 1918 (Sydney). 



Protosjnrura muris Gmel.* (syn. Spiroptera or 

 Acuaria obtusa Froel) J. 1909a, p. 218 ; 1912a, p. 75 (Bris- 

 bane) . 



Mus MuscuLus ALBus — White mouse. 

 Hymenolepis diminuta Rud. J. 1918 (Sydney). 

 Oxyuris obvelata Brems. J. 1918 (Sydney). 

 Gongylonema Sp. J. 1918 (Sydney). 



EpIMYS RATTUS and its variety ALEXANDRINUS. 



The latter is much commoner than the former in 

 Eastern Australia. 



■ Spirochceta ratti J. & Cj J. & C. 1909, p. 507 and in 

 Bur. Microbiol. Rep., 1, 1909 (1910), p. 35. 



Trypanosoma lewisi Kent. Pound 1905, p. 36 (Bris- 

 bane) ; J. 1909ft, p. 581 ; 1909c^, p. 409 ; 19166. p. 43 (Bris- 

 bane) ; J. & C. 1909, p. 502 510. 



Hcemogregarina ( Hepatozoon) muris BaLf . Cleland 

 1906a, p. 516, 519 ; and 19066, p. 296 (as Leucocytozoon 

 ratti (?) and L. balfouri howi Mus decumanus hut host was 

 subsequently determined as Ep. alexandrinus, West Austr.) ; 

 J. & C. 1909, p. 501 (W.A.) ; J. 19096, p. 581 (" rat "— W.A.).- 



Sarcocystis muris Blanch. J. 1909a, p. 418 ; J. & C. 

 1909, p. 510; J. & C. 1911, p. 305; J. & C. 1912, p. 115. 

 Also in Rep. Bur. Microbiol, 1, p. 45. 



* Agatnonenia sp. found in the rat fleas, Xenopsylla cheopis and 

 Ceratophyllus fasciatus in Sydney (J. 1912a, p. 81-2) is probably the larva 

 of Proiospirura muris. It regembles the form figured by Leuckf rt, 

 (copied by Hrill, 1916, fig. 267). 



fAt least two other spirocha;tes are known from Muridse, viz., <S'. minor 

 C.rter, 1887, in rats, and S. muris Wenyon, 1906, in mice. A brief accoi i.t 

 is given in Doflcin's Lehrb. d. Protozoenkunde, 1909, p. 334. 



