56 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



HETERAKIS BANCROFT! Johnston, 1912 



Host. — Oatheturus lathami. 



L ocation. — Ceca. 



Morphology. — Heterakis (p. 50) : Mouth with 3 prominent lips of 

 equal size. Alimentary canal of usual Heterakis type. 



Male 4.3 mm. long by 220/* wide. Tail (fig. 71) with very narrow 

 delicate appendage. Sucker 73/* in diameter, with chitinous ring, its 

 posterior margin about 35/* anterior to cloacal aperture. Caudal 

 alae lobulated. Six pairs of papillae, of which 2 are preanal and 4 

 postanal. Spicules equal, 860/* long, sharply pointed. 



W 71. 



Wnfrn 



Figs. 68-71. — 68, Heterakis alata. Male tail. After Schneider, 1866. Heterakis 

 arquata. Male tail. 69, After Schneider, 1866. 70, After Travassos, 1913. 71, 

 Heterakis bancrofti. Male tail. After Johnston, 1912 



Female 6.25 mm. long by 330/* wide. Tail rather short (anus 910/x 

 from end) and sharply pointed. Vulva at about middle of body. 

 Life history. — Probably similar to that of H. gallinae (p. 54). 

 Distribution. — Australia. 



HETERAKIS BERAMPORIA Lane, 1914 



Host. — Gallus gallus. 



Location. — Ceca ; adults in lumen, larvae in nodules. 



Morphology. — Heterakis (p. 50) : Very similar to H. gallinae, but 

 with short spicules. Lateral membranes begin about 800/t from head 

 and extend almost entire length of body. 



Male 5.5 mm. long by 210/* wide. The circular sucker (fig. 72) is 

 55/* in diameter. The spicules 350 and 300/* long, the longer with a 

 tapering curved point, the shorter expanding in the terminal third 

 end with a prominent angle on the ventral aspect near the point. 



