76 NOTES ON SOME ENTOZOA. 



Microfilaria sp. 



(PL III; Figs. 16, 17). 



Filarial embryos have been found by Dr. J. B. Cieland 

 and myself in Plotus novcehollandice and Phalacrocorax 

 sulcirostris, both shot on the Burnett River by Dr. Bancroft. 

 These larvae are relatively long (-163 to -236 mm.) and 

 narrow (-004 to -006 mm), with a rounded anterior end 

 and a pointed posterior extremity. A sheath is present. 



Filar ia sp. 



(PI. Ill ; Figs. 14, 15). 



I found several immature female filarise encysted in 

 the subcutaneous tissues of a " leather-head " Philemon 

 citreigularis forwarded hy Dr. T. h. Bancroft from Eidsvold 

 They were coiled up within fairly thick brownish cysts, 

 only the head end protruding. Their length, when 

 uncoiled, is 10 mm. The cuticle is very distinctly ringed, 

 the ridges being similar in general appearance to those 

 present in species of Onchocerca. 



The anterior end is narrowed and bears six papill*, 

 while the posterior end is pointed. The anus lies at about 

 • 16 mm. from the latter. The nerve ring is situated at 

 about -14 mm, from the head extremity. The mouth soon 

 leads into the oesophagus which in its turn communi- 

 cates with the intestine. The excretory pore is situated 

 in the region of the nerve ring. 



Filar ia, sp. 



(PI. IV ; Figs. 37, 38). 



A mature female worm, about 20 mm. in length, and -7 

 mm. in maximum breadth was taken by Dr. J. B. Cieland 

 from the subcutaneous tissues of a honey- eater, 

 Acaiithogenys rufigularis, shot near Sydney, N.S. Wales. 



The anterior end is narrowed but terminates abruptly, 

 while the posterior extremity ends in a short bluntly- 

 rounded tail. The cuticle is practically smooth. The three 

 lips are not prominent, but each bears a tiny papilla. Lying 

 at a short distance behind the mouth are the excretory 

 aperture (at '14 mm.), and the female pore (at -24 mm.) 

 Lateral lines are relatively broad, the excretory vessels 

 travelling within them in a sinuous course. The 



