U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 84 PLATE 



1. Brachycoelittm huspitaU Stall'ord: Ventral view of specimen from intestine of Ambijxtoma opacum 

 X 23. 

 2, 3. B. mesorchium, new species: 2, Dorsal view, X 23; 3, details of excretory system, outline, X 23. 



4. B. georgianium, new species: Ventral view, X 23. 

 5-7. B. trituri Holl: 5, Dorsal view of specimen from Hann sphenocephain, X 23; fi, details of excretory 

 system, outline, X 23; 7, details of the ovarian complex, diagrammatic. 



(All figures except 3, 6, and 7 were drawn with the aid of the camera lucida.) 



