BY T. II. JOIINSTOX AND J. B. CLELAXD. 49 1 



KXPLANATIONT OF PLATES XTIL-XVI. 



Plate xiii. 



Figs. 1-10. — Trypanosoma chelodina from Emydura hrefftii. 

 Figs. Wl'i. ^Trypanosoma chelodina from Chehdinalonr/iroUis{Q\.ieen^\a.ndi). 

 Figs. 13-14. — Trypanosoma chelodina from Chelodina longicollis (South Aus- 

 tralia). 

 Figs. 15-20. — Hcvmocystidium chelodinm from Emydura kreftii. 

 Fig.2l. — Hismocystidium chelodimt from Chelodina oblonga. 



Plate xiv. 



Fig. 1. — Normal erythrocyte of Chelodina lonijicollin. 



Figs. 2-6. — ffcemogregarina c'elandi from C. lon'jicollis (Queenslaiul). 



Figs. 7-9. — Hcmogregarina rlelandi from C. longicollis (>ioulh Australia). 



Figs. 10-13. — Hiemogregarina clelandi from (7. oblonga (West Australia). 



Fig. 14. — Normal erythroc\'te of C. oblonga. 



Figs. 15-2.5. — H. clelandi in blood-cells of Emydura krejftii. 



Plate ::v. 



Fig. 1. — Normal erythrocyte of Pseudechi'i porphyriacus. 



Figs. 2-5. — Hcmogregarina psexidechis. 



Figs.6, 8-15. — H. tiliqun' from Titiqna scincoides. 



Fig 7. — Normal erythrocyte of 7'. scincoides. 



Figs. 16-1 7-— Normal erythrocytes of Pseudechis australis. 



Figs. 18-24. — If. hancrojti from Pseudechis australis. 



Plate xvi. 



Fig. 1. — Normal erythroc3-te of Varanus gouldii. 



Figs.2-10. — Hcemogregarina gouldii from ('. gouldii. 



Fig. 11. — Normal erythrocyte of V. ra)iHS. 



Figs. 12-20. ^//^. varanicola ivom V. rnrius. 



Fig. 21. — Microfilaria from Physignalhus lesnenrii. 



Fig.22.— Normal erythrocyte of P. lesueurii. 



(All the above figures have been drawn, using the same magnification.) 



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